Again, not much makes me mad, but these things annoy me slightly:
The fact that the Australian government won't let me have a job in America until I acquire a social security number, and they won't hurry up and actually look at my application. Even then, when they actually do take the time, it will take around a month to get one to me.
I WANT MY MONEY DAMNIT
Also, Twilight fans that lust after the characters endlessly, to the point of ignoring reality and wasting their lives doing nothing but thinking about these fictional characters. It's sickening, really.