Knock, Knock, Ginger
（重定向自Ding Dong Ditch）
Knock, knock, ginger (also known as knock down ginger, ding dong ditch and numerous variants) is a prank or game dating back to 19th century England, or possibly the earlier Cornish traditional holiday of Nickanan Night. The game is played by children in many cultures. It involves knocking on the front door (or ringing the doorbell) of a victim, then running away before the door can be answered.