Other things that are annoying.

[baratron]

People who sit in public computer rooms chortling away to themselves at something hilariously funny on their screen. To quote Richard, "What's the deal with that?"! I mean, yes, sometimes you get an amusing email or see an amusing post somewhere, and you laugh when it comes in - but to sit there giggling every 30 seconds or so just makes the people around you rather annoyed...