Knock Knock Somebody knocks on door: - Who is there? - Police? - What do you want? - We want to talk. - How many of you are there? - Two. - So talk with each other.

Knock knock. Whose their? The grammar police.

COP: do you know why I pulled you over ME: knock knock COP: who's there ME: do you know why I pulled you over COP: *begins to sweat* n..no

POLICE: knock knock DRUG DEALER: who's there P: weed DD: weed who P: we'd like to come in and arrest you DD: lol good one, come on in