(In the men's restroom, as told to me by Jason.)
Callum was in the single stall, taking his sweet time pooping, and loudly signing, mariachi-style, "Delici-o-so! Delici-o-so!"
Then turning strangers into friends at the sink:
"Are you an old man?"
"Yes I am."
"I am not. I am five. First I was three, second I was four, and third I am five!"