There's pretty much nothing that pisses me off more than people who change their mannerisms/way of speaking/choice of words based on who they're talking to or who they're with. Yeah, I hate that. I know I do it too sometimes, but not as frequent or extreme as some people.
I guess I'm learning to manage my anger. I went from something mildly upsetting making me dislocate my shoulder to possibly the worst phone conversation in my life resulting in nothing. I'm just going to sit in my room and cry all weekend now.