Here are two things that bug me:
1) When school teachers misspell words on their Facebook updates. I really do fear for the future. I mean, holy cow, they aren’t updating their statuses in Latin for crying out loud. That said, I made about a dozen typos in the last 25 words, so whoops. Karma, you suck.
2) When married people share Facebook accounts. Dude, they’re free. You can each have your own, assuming that you don’t include in your profile that you’re “Married But Looking” or something.