Overheard at my parent's house last night.
[5-year-old] - Uncle Mike, I have the funniest knock knock joke in the world.
[Uncle Mike] - Oh yeah?
[5yo] - Yeah, you start.
[Uncle Mike] - Knock knock
[5yo] - Who's there?
[Uncle Mike] - Interrupting cow
[5y0] - Inter...wait, no, you're supposed to-
[Uncle Mike] MOOOOOOO!
