I was in the sauna the other week and a guy was greeting an old female friend he hadn't seen for a while (apologies if you've heard this one before)

He: So what have you been doing
She: I've been at college and Uni - I'm just about to graduate with a degree in acting
He: You'll be a thespian then
She: What's a thespian?

Exchange of disbelieving glances from sauna users