When I see one outside of class, it's like watching a dog walk around on its hind legs. I saw my physics professor in walmart once - I was in pajamas, buying deodorant, and he was with his kid. It was cute though - I could hear his son laughing at him from the next aisle like "LOLZ DAD, SHE CALLED YOU DOCTOR FLETCHER. YOU'RE SUCH A NEEERRDDD!"