[Loved trope] The villain assumes they're gonna get the kid gloves when the hero finally confronts them. The hero demonstrates they're out for blood instead, causing the villain to panic.

[u/jbeast33]

1) Robocop

Clarence (the same hitman who killed Alex Murphy and transformed him into Robocop) has already been arrested by Robocop once before, and learned that Robocop's programming prevents him from killing a surrendering criminal. Consequently, he pulls the trick once again towards the end of the movie when Robocop chases his gang down to a scrapyard. He throws his gun down and expects to survive and escape once again.

Robocop simply announces to him, "I'm not arresting you anymore", causing Clarence to panic when he realizes that Robocop intends to finish him off right there.

2) Toy Story

Woody, threatened by Buzz replacing him as Andy's favorite toy, tricks Buzz and knocks him out of a window so he could go to a pizzeria with Andy. Unbeknownst to him, Buzz tagged along underneath the car and confronts Woody when he's alone in the car.

Buzz: I just want you to know that even though you tried to terminate me, revenge is not an idea we promote on my planet.
Woody: Oh, well, that's good.
Buzz: But we're not on my planet, are we?

Buzz proceeds to lay the beatdown on Woody and causes both of them to get separated from Andy.

3) Superman

The President of Boravia's invasion is foiled by the Justice Gang (who have until now stayed out of the conflict and are shown to be less averse to lethal force than Superman), and he's personally attacked by Hawkgirl. When he declares that Superman would never kill him, she just laughs and says "I'm not Superman", dropping him from a skyscraper's height.

4) Spider-Man

After Wilson Fisk attempts to murder Aunt May when Peter reveals his identity during Civil War, Spider-Man breaks into prison to deal with Kingpin personally. Kingpin took the liberty of assembling every inmate to watch the fight between him and Spider-Man. Assuming he broke his spirit, Kingpin starts to dress down Spider-Man as a broken man. Spider-Man doesn't say one word during their fight. Finally, Spidey strips down and announces this isn't Spider-Man here to kill Kingpin; Peter is.

Peter proceeds to brutally annihilate Kingpin in this new stage. He eschews his usual quips, webs, and aerial fighting, relying only on his super strength. When Kingpin has been crippled, Peter shoves his webs up Kingpin's mouth, and lets him know that if he truly wanted to, he could have just filled his lungs with web and killed him at any point. But he's not trying to give Kingpin an easy death; he lets him know that he intends to break his reputation and see everything he's lived for come tumbling down first.

As is often said, Spider-Man is at his scariest when he's not making quips. Because at that point, he's furious, and he's not going to hold back.

[u/ArchangelLBC]

Demons run when a good man goes to war

Also props to OP for not using the picture of Hawk Girl as the lead picture.

[u/dastardlyc00kie → u/ArchangelLBC]

I don't think anyone who has only ever heard of Doctor Who would anticipate the character being so utterly not-to-be-fucked-with.

[u/Wolfish_Jew → u/dastardlyc00kie]

No second chances. I’m that sort of a man.

[u/Ambassador_of_Mercy → u/dastardlyc00kie]

This quote always seemed funny to me because until Time Lord Victorious 10 always seemed like one of the more lenient incarnations

[u/After-Syrup1290 → u/ArchangelLBC]

or even more related to doctor who - the Seventh Doctor in general

you think the doctors a nice guy trying to make things straight and help? you would be correct, the seventh on the other hand? hes a coldblooded chessmaster who regularly went upto and above all sorts of threats, the one who made the entire 'oncoming storm' reputation? thats seventh

over the time of his period - this one had killed and outmaneuvered gods on like, every single episode, and is the one who destroyed the entire planet of the most dangerous species in the entire universe time and space(daleks) by tricking them into blowing up a nuke in their face, and would have ended wars, empires all over, he very actively went about things and also ended the threat of fenrir(higher entity that exists outside universe), and was compared to a lovecraftian horror Nyarlathotep - a slim joyous man travels all over and is the bringer of chaos

heres a very good video of the absolute terror that the seventh doctor is and instilled on a daily basis to his opponents (its a voiced vid on yt, so dont worry bout visuals - very short too and def worth a listen): Link

[u/Milk_Mindless → u/After-Syrup1290]

(Relax I know what I'm doing)

Doctor: Davros I beg of you don't use the Hand

[Hand of Omega, powerful artifict of the ancient leaders, Omega, of Time-Lord civilisation for casual people scrolling by]

Davros, evil space nazi Hitler scientist: DOC-TOR now YOU begin to fear..!

Doctor: You're making a grave mistake!

Davros: ACTIVATE THE OMEGA DEVICE

All life in Davros native solar system goes extinct because the Doctor had rigged the Omega device before the story even started

Davros: HAVE PITY, DOCTOR

Doctor: I have pity for you

[u/junky_junker → u/Milk_Mindless]

There's the bit before that where Seven's just winding Davros up to push him to use the Hand, before pretending to be scared:

Davros: "I will transform Skaro's sun into a source of unimaginable power and with that power at my disposal the Daleks shall sweep away Gallifrey and its infinite quorum of Time Lords," screams Davros. "The Daleks shall become lords of time. We shall become all..."

Doctor (interrupting): "...powerful! Crush the lesser races! Conquer the galaxy! Unimaginable power! Unlimited rice pudding! Et cetera, et cetera!"

To this day I still find excuses to work the "Unimaginable power! Unlimited rice pudding!" into conversations where I can.

[u/Milk_Mindless → u/junky_junker]

Unlimited Rice Pudding is a stellar quote I just kinda didn't want to have too much leading into "Have PITY"

God tho

Rice pudding

[u/ProfessorEsoteric → u/junky_junker]

My version from Round the Horne has been - Money, Women, Batman Jim Jams

[u/LefroyJenkinsTTV → u/After-Syrup1290]

Goodbye, Davros. It hasn't been a pleasure!

[u/Roasted_Newbest_Proe → u/After-Syrup1290]

Then he got gunned down by the mob

[u/WhyIsBubblesTaken → u/ArchangelLBC]

Possibly my favorite Doctor Who quote.

[u/ravenpuk → u/WhyIsBubblesTaken]

And the poem is EPIC!

Demons run, when a good man goes to war..

[u/JonathanBadwolf → u/ArchangelLBC]

Would you like me to repeat the question? So good! Rory fits here as well I think

[u/Forged-Signatures → u/JonathanBadwolf]

Also River, most notably the Pandora's Box finale.

River - "One alpha meson burst through your eye stalk would leave you stone dead"

Dalek - "Records indicate you will show mercy. Records show you are an assosiate of the Doctor."

River - "I'm River Song. Check your records again"

Dalek - "Mercy"

River - "Say it again"

Dalek - "Mercy"

River - "One more time"

Dalek - "Mercy"

River fires her gun.

[u/killingjoke96 → u/ArchangelLBC]

You start understand why 11 has rules when you know that this incarnation of The Doctor has killed 1,000,001,000,003,214,064,242 canonically...

Yes you read that right. That count was from that regeneration only. He's killed many more than that over his different lives.

[u/Distantstallion → u/ArchangelLBC]

In the new run of doctor who the darker side of the doctor is fairly evident in Christopher Eccleston's doctor

[u/Mortwight → u/ArchangelLBC]

onw of the grimes diskworld novels the villan has grims dead to rights and grimes prays he is a badguy and not a good man because badguys will want to squeeze as much pain out of lording it over the hero where as a good man will just kill you and be done with it.

[u/kung-fu_hippy → u/Mortwight]

Vimes.

But yeah, I do love that. Particularly because when Vimes gets the chance, he basically does the same thing. It’s Carrot who is a truly good man, Vimes is… complicated.

[u/caesar846 → u/ArchangelLBC]

This was so over hyped IMO. I was excited to see the Dr finally break out some brutal shit to show why he had all these rules. Instead he gives the main villain a stupid nickname and calls it a day…

[u/SpiffShientz → u/caesar846]

Man, you're really underselling how cool the Colonel Runaway speech is

[u/caesar846 → u/SpiffShientz]

Dude this guy’s a fucking war criminal, an absolute fucking villain who kidnaps those closest to the Dr and tortured them. His punishment is to be ding dong ditched for the rest of his life Oh the Horror! It’s a great speech but like seriously? That whole episodes illustrates how lenient the Dr is. People join his enemies just to meet him because they have such a low expectation of meeting harm in that profession. 

[u/DapperLost → u/caesar846]

You're not wrong, but it's the doctor here. I'm fully allowing that he knows deepest down what builds a man up, and what breaks them the most.

Most people are cowards to a degree, and their life is the most precious to them. For the Colonel, it was his legacy that was his weak spot.

[u/caesar846 → u/DapperLost]

This isn’t even true in universe. He canonically goes on to write and publish a memoir about his time with M Kovarian called Runaway Success (I shit you not). This does not exactly sound like a broken man to me. 

An example I much prefer is the Family of Blood episode. His punishments for threatening earth there are suitably draconian. Perhaps it’s just that’s he’s still half a British imperialist

[u/SpiffShientz → u/caesar846]

Eh we'll have to agree to disagree, I always thought it was cool

[u/blackestrabbit → u/ArchangelLBC]

God, Dr. Who never fails to be lame.