One thing I almost bitch-slapped a trio of freshmen for:

Note: Bold is where I really started losing brain cells.

Girl 1: I'm thinking about getting a bunny.

Girl 2: Yay!

Girl 3: What's the difference between a bunny and a rabbit?

Girl 1: I'm pretty sure bunnies are boys.

Girl 2: Are you sure?

Me: *mentally* Are you just joking or are you actually that dumb?