It really bugs me when people mispronounce things, or make spelling or grammar errors. I am a self-proclaimed grammar nazi, and the majority of my friends know that. Like when people say "supposibly" when its actually "supposedly".
Also, when people use text language when typing on a computer. Whyyy? I don't understand it! It takes like an extra millisecond to type the full word or put an apostrophe! I even add apostrophes and I capitalize my letters that require capitalization when I'm texting. When people says things like "got 2 go" when texting it confuses me too...I mean really...you're using the same number of keys as when typing "got to go", because you have to change from letters to numbers if you're going to type the "2" instead of "to", so why not just use proper grammar?
Blah. Yes, I know strange things bother me, but I'm rather OCD like that. Like with my need to have everything of the counter in the exam rooms at work at a right angle. All the remotes, notepads, occluders, etc...MUST be at a right angle or it bothers me. I'll find myself absent-mindedly straightening everything on the counter while I'm talking to my patients. Some people must think I'm crazy, but oh well, everyone has their little quirks!