Amazing article.

http://en.wikipedia.org/wiki/Knock_down_ginger

This article is amazing - read the variations , here are some highlights.

"Sardines" A group knocks on the door and either lays down on the driveway or front lawn/step. The last person to leave wins the game.

"Gnoming or Clay-gnoming" which is the knocking at a door or pressing of the doorbell of a house and waiting on the doorstep for the house-owner. When the door is opened the "Gnomer" stands very still. If the house-owner speaks to the Gnomer, they are to fall over. Only once the house-owner has gone back inside their house may the Gnomer leave

"Dance Dance Doormat" When they answer the door you start dancing until they get mad at you.