overheard at Columbia University

In the gym:

girl1: is this your only class?
girl2: no, I'm doing 6 classes.
me: you're doing 6 gym classes??
girl2: no, normal classes. 6 gym classes would be so tough!
girl1: not to mention expensive!

(I know I'm breaking the rules of Overheard by participating, but whatever... call it Gonzo Overheard then.)