I have a co-worker who is loud, rude, generally unpleasant. Oh and nerdy, not in the appealing "I'm super passionate about an esoteric subject" way but in the too much science fiction way. And not so good at using his indoor voice.

Apparently a conversation at his desk got a little heated because he just said "not 'Trekkies'! Trekkers! Trekkers!"

so now you know