Personally, I don't talk in movie theatres, even if the movie itself sucks as hell (then i'd leave)--but we do get the coughers, talkers, and worse of all, babies.
Who the heck brings their babies in to see a movie? It's like sitting in a 17 hour flight with a sugar-high toddler.
Sadly, society doesn't allow us to punch the faces of cyring babies in the cinema....so it's more of whether we should punch the parents instead. (hey, thread said tendencies that make people want to punch you, right? moving on.)
I have a friend who's super loud. Heads always turn when we're having a conversation because it's usually, 'my ass hurts,' or 'I can't take it anymore! no more oral sex for my horny husband!' in volume 60. It sometimes pisses people off because a lot of them are conservative Christians. It's funny though, because we're on campus, and the discipline office is pretty much across the hallway. Oh, all the innocent minds we've tarnished and all the exams they've failed because of that *cough cough*
You know that psychological tendency where you acknowledge that you have the advantage over something so you use it just to annoy other people? For example, when you're using the public telephone and someone comes up behind you and waits for his/her turn. So, intentionally, you prolong the conversation because you suddnly get this power trip knowing you control how long the poor guy's gonna wait? Hehe, I do that. In the bathroom stalls. See how good their bladder control is. I'm evil.
Jam it back in, in the dark.