I was sitting in a communications class lastnight, and one of my friends takes it with me. They were about 10 minutes from campus, but decide to call and talk to me. I use a bluetooth headset on my cellphone, so when I'm talking with it, everyone thinks i'm crazy and talking to myself.
What bugs me is when your gonna be seeing someone in a matter of minutes, and they can't wait that long to just tell you stuff in person and instead call your cell and chit chat.
People who talk on cell phones at inappropriate times: class, meetings, driving, in the middle of hanging out, on a date, or just talking with someone in person ("hold on I have to take this").
Cell phones are evil and cell phone etiquette is non-existent.
Many other things annoy me: people coughing out for everyone, and anything stupid or inconsiderate.

when i work so hard to pull the grades that i do, and this one girl brags "I'm pulling A's on the exams, and I never even paid attention in class or read the books"
when i work so hard to pull the grades that i do, and this one girl brags "I'm pulling A's on the exams, and I never even paid attention in class or read the books"
Speaking of that, the people who say they're failed a subject/test because they got a B or a low A, drives me insane:>_<:
complains when she pulls a B, never spends time with the rest of us (always has her door shut, whether she's in or not), complains about everything, thinks I'm talking to her when I've got my back to my door and a phone to my ear, is OCD about cleaning EVERYTHING with Lysol (even sprayed one of my other suitemates because she didn't want to get off the couch in the middle of a movie), complains about being fat yet doesn't exercise and finds it necessary to take her car/the elevator everywhere, brought an elliptical into our room in August and has yet to go within 5 feet of it, brought these two pink flamingos that we have no idea what they're for, eats three meals in one sitting period and continuously throws out half of each in our closet garbage (she's the only one, we throw ours into the bathroom one and take it out frequently) then complains that it always smells in there and insists on Lysoling it (even though it makes it 10x worse), she never takes out the garbage so we always have to put up with the terrible smell every time we open the door, she tries to do crafts with us and fails to realize that she is worse than a 2 year old...hm...i could go on even longer than this...but I'll stop to save some of your sanity
*pretends to know what that is*