1) Hypocrites. Saying one thing and doing another. Or someone who parties and gets fucked by about 10 frat boys on Saturday, then goes to church on Sunday to teach Sunday School. There are other variations of this, but that one stuck out to me.
2) Not getting a hint. I'm pretty subtle when it comes to not wanting to be around anyone at a certain point in time... like putting on earphones or looking busy... yet people still want to come over and pester you for no good reason. Then when you tell someone flat out, they get mad. Jesus Christo.
3) Lying when there's no need to and there's no real consequence in telling the truth. I understand maybe withholding the truth if someone's job's on the line or if a life may be at stake, but lying to make yourself look better or to make someone look bad is just plain dumb. No one really cares anyway.
4) The 'user'. I call this person the 'user' not for drug use, but for me use. Someone who spills the beans about their issues and problems, then when you want to talk to them, they don't have time or they ignore you or act like it's a huge burden for them to listen. I've lost a few friendships and girlfriends over this issue.
5) Obnoxiousness. Nothing may peeve me more than being obnoxious. I slugged a dude for being obnoxious in a bar. A cut eyebrow and chipped tooth later, I still felt great slugging the hell out of that yard ape. There's no need for being obnoxious unless you're either trying to pick a fight or you're an idiot.
6) Being a snob. When someone acts like they're above talking to you around certain people. I've had this happen a few times. Flattened someone's tires for it, too.
7) The brainiac. We know you're smart. No need to point it out every second of the day, then try to make someone feel bad for it. Fucker.
8) Racists. Is there anyone dumber than a racist? I think not.
9) Being extremely ditzy. It's one thing to be cute and not know some things (Jessica Simpson), but to be flat out dumb and not be aware of it (Heidi Pratt), that is something that just annoys the hell out of me. Read a book. Watch a documentary. Stop *********ing or blowing random douchebags long enough to educate yourself.
10) Mr. Opinionated. Someone who has something to say about everything. Even if they know shit about the topic at hand. And most of the time, they disagree with said person. I've been in a fight with someone over this. A physical fight. He kept on and kept on and I called him out on it. Then he admitted he just wanted to do it to piss me off. Fair enough. A right cross to the mouth later, he had very little to say. Mind you, the guy had been doing this for ages before I finally got tired of it. Plus I was a little drunk. Whoops.
11) The showboat drunk. I"m not saying IC's in this category. He's not showing off. He's just a man who loves his WZ. I'm talking about the dude who is maybe slightly to moderately wasted and is going around saying, "I'm so drunk, man. I'm sooo... drunk." We get it. You're drunk. Congrats. Go get a cookie or go driving on the interstate. I told a drunkard to go do that once. He did. He got put in jail. I felt bad. For a second.