Sally fell off the swing.
Knock knock.
Who’s there?
Not Sally.
Sally fell off the swing.
Knock knock.
Who’s there?
Not Sally.
Alright, listen up, buttercup. So, Sally takes a tumble off the swing, right? Then comes the "Knock knock" part. You expect Sally to say, "Who's there?", but SURPRISE! It's "Not Sally" because she's busy face-planting in the dirt. Get it? Or are you still picking your nose?
Stephanie
Good joke