This was the focal point of an episode of The Big Bang Theory a few weeks ago. I I was convinced it was made up in the writers room. Apparently not. Rock, Paper, Scissors, Lizard, Spock was created to reduce the likelihood of ties.

This shirt explains how it all works.

To take rock paper scissors to the next level?

Well, this one will do it for you. The rules are as follows:

* Rock crushes lizard.
* Scissors decapitate lizard.
* Lizard eats paper.
* Lizard poisons Spock.
* Paper disproves Spock.
* Spock vaporizes rock.
* Spock bends scissors.

Well worth having in case of arguments in your challenges as to who beats what.

But I always played it with rock, paper, scissors, flick knife and uzi... (via thinkgeek)