Primanti Bros., Crafton.
A middle-aged regular sits at the bar, eating his lunch, a Pittsburgher Cheesesteak:

Regular: This sandwich is really good.
Waitress: Yeah, I was surprised when you ordered a sandwich; you always seem to order wings or stuff like that.
Guy: Yea I know, but I’m on a diet now.
Waitress: Oh…

— Overheard by Steve