library etiquette?

the guy sitting across from me is grinding his teeth in a really nasty way... it's really disgusting. what is the problem with these ppl? don't they have any manners? may be he doesn't realize that i can hear it... gosh. a few days ago a friend posted abt a similar problem with an obnoxius table-buddy and i found it mildly amusing. now i'm just starting to get angry and frustrated.

reading is excruciating.

he really needs to stop making that noise. or i'm going to through something in his general direction. or may be i'll just move... sigh...