My very first message on OK Cupid went like this (I deleted it, apparently, so it'll have to be from memory):
Them: You look really lovely.
Me: Thanks! That's really nice of you to say!
Them: Well you do! Do you mind if I ask you something personal?
Me: Not at all, ask away!
(At this point I'm thinking it'll probably be something a little dirty/relating to casual sex, but there's no harm in letting them ask)
Them: Well my friend has this website, for porn, would you like to work for him?
*Jaw smacks keyboard*
Not what I was expecting in my first message.