Knock! Knock! Who’s there? Olive…

Knock! Knock! Who's there? Owls say. Owls say who? Yes, they do.

Knock! Knock! Who's there? Bruce. Bruce who? I Bruce easily, don't hit me !

Knock! Knock! Who's there? Oswald. Oswald who? Oswald my bubble gum!

Knock! Knock! Who's there? Yacht. Yacht who? Yacht to know me by now!

Knock! Knock! Who's there? FBI. FB… We're asking the questions here.