Gwen: “Knock knock!”
Me: “Who’s there?”
Gwen: “The interrupting butt.”
Me: “The interrupting bu —”
Gwen: “TOOOOOOOT!”
Gwen: “Knock knock!”
Me: “Who’s there?”
Gwen: “The interrupting horse.”
Me: “The interrupting ho —”
Gwen: “MOOOOO!”
Me: “Moo? I thought it was a horse.”
Gwen: “Yeah, the cow kinda got in the joke.”