I use all kinds of words, many that are likely on this list already.. Therefore, I don't really get too upset when people use words verbally.
However, I used to MUD a lot, and one of the players would always call everyone a "critter." So they would be like, "Good morning critters," "Have a nice night, critter," etc. It absolutely drove me nuts, and I couldn't stand it at all. I'm not sure why, but since it has become a word that just grinds me whenever it's used. Maybe because it's partly condescending, but also a "cute" word, although I'm not even sure. It just really aggravates me.
Other than that though, very little bothers me. I have all kinds of phrases, words, and random comments that I'll use throughout a day, and I think it's really neat to see other people using new expressions and such.. As long as it doesn't include "critter."
