True Story. I was only a bystander.

[frogwitch]

"Umm...I think there's something wrong with your cat. He's got bumps on his belly and they're not his belly button."

"Those are his nipples."

"But he's a guy! He shouldn't have nipples!"

"You're a guy. Don't you have nipples?"

". . ."

(Actually, this is an anecdote from long ago, involving a college acquaintance and in reference to
ladyblackbriar's cat.)