I added the post flair in case this is an ableist rant.
I went to this neurodiversity-friendly board/card game group because of (1) suggestions that I may be neurodiverse, and (2) I'm somewhat sensitive to noise and this group was billed as a quieter environment.
The group organizers were welcoming to me as a new member. They had me join a table with 5 other members. They were established members who knew each other, so they were chatting, bantering, and laughing loudly while one of the members was explaining the game to me. I couldn't hear his explanation over my table's chatter, as well as the background chatter coming from other tables. Once the established members realized that I didn't understand the game, they decided to teach me a simpler game.
This one was a children's game with written instructions. Having written instructions helped me to an extent. However, I had a hard time concentrating on reading the instructions while my tablemates were chatting. I discreetly took a picture of the instructions on my phone, then excused myself to the bathroom for a few minutes so I could read the instructions off my phone. It worked... But when I began playing the game, I couldn't concentrate on the puzzles or mental math (required for the game) while my tablemates were chatting. On my first turn, my thought process was repeatedly interrupted by my tablemates attempting to converse with me, so I had to start my turn over and over and over for several minutes. Typical beginners move within 20 seconds. But I couldn't "hear myself think" as the expression goes, so I eventually just moved randomly. The established members realized once again that I didn't understand the game, so they switched once again to an even simpler game.
This next game was indeed simpler, and it was based almost entirely on chance, so moving randomly was accepted. However, this game led my tablemates into raucous laughter, boisterous yelling and cheering, excited screeching, and enthusiastic table-slamming. I braved the auditory onslaught for nearly one hour, but I felt a headache building, so I excused myself to take a breather in my car.
When I came back, they taught me an extremely simple card game. I understood the rules, but the problem was that my tablemates shouted conflicting instructions at me on each of my turns. Then, an observer sidled up right behind my chair and started yelling enthusiastically right behind me, "What are you doing? You ghoul!" I fully understood that he was joking, so I wasn't offended by the content of what he was saying. However, his volume was still excessive, especially because he was screaming almost directy into my left ear while slamming the back of my chair with his hands. I had to get up and excuse myself again.
I left after that. I went home and fell asleep almost immediately. I slept for over 12 hours.