Interrupting Ninja
The World’s Most Dangerous Knock Knock Joke:

Knock. Knock.

Who’s there?

Interrupting ninja.

Interrupt…

Hi-ya!

(And then you punch them.)

via boingboing.net

Office Ninja interrupts pathetic cube drone.

Office Ninja interrupts a boring meeting. That chart totally had it coming.

Yo Kayne, imma gonna let you finish, but this ninja is the best interrupter of all time.

Yo Kayne, imma gonna let you finish, but this ninja is the best interrupter of all time.