A personality psychologist named Robert Hogan put together a 20-question quiz to figure out just how annoying you actually are.  It gauges you on the three big areas of annoyingness:  Whether you're picky, arrogant, or irritating.

Overall, you get a score between one and five.  The quiz only takes about two minutes and it's definitely worth your time.  Just Google "You Bug Me.  Now Science Explains Why."  Check it out on the left side of the page.

Here are my results:

Apparently, I'm a jerk.