Guys used to do things to try to make me embarassed. Just because they have advanced engineering degree doesn't make them immune from such sophmoric behavior. I used to taunt them in return. Only one guy was willing to try spar with me verbally.

me: so are you a boob kind a guy or butt kind.
you really want a stripper as your GF? You think you can handle one?
and few other things.

only one guy shot back at me grinning saying he liked both boob and butts. I couldn't get him to be embarassed.

Don't get mad! Embarass and shame them to no end.