Why'd Bobby drop his ice cream?He got hit by a bus.Knock KnockWho's There?Not Bobby.
very similar to "why did tina fall off the swing set?she has no arms.knock knockwho's there?not tina"
Has that one been used in this thread already?If so damn the person who used it
no, it's a joke that's been around for a while
why did the chicken cross the roadto get to your house