Me, trying to get my kid to sit on her chair: “c'mon, sit down on your tushie, BC. it's snack time.”

Julia's mom: “hahah. BC, you don't have a tushie to sit on. it's so tiny.”

BC, insistent: “i have a tushie!”

Julia's mom, laughing: “i'll tell you a secret. julia's daddy doesn't have a tushie, either!”

BC, after thinking for a minute: “then how does he go poop?”