Overheard in Chicago

I was in Chicago last night to have dinner with my brother before flying off to Pittsburgh (on which, more later) and overheard this gem, not on a mobile phone, but a guy speaking to a woman who may or may not have been his girlfriend as they walked passed me:

"No, really, you look great. I was just kidding."

Hint: you should never, ever, ever be in a situation where you find yourself saying that to your girlfriend, dude.