Summary
BrainDamage allows you to run drinking games by creating rules, assigning numerical scores to them, tracking scores and announcing winners. Although it was designed for drinking games, you can use it for other purposes by changing the "units" used by the AddOn from the default "drinks" and defining your own rules and winner/runner-up messages.
The AddOn doesn't come with any rules built in, you will need to add them yourself.
Type /braindamage or /bd in-game to see how to use the AddOn.
Credits
The original concept for BrainDamage was outlined by Picturč in this thread.
The name BrainDamage was inspired by the drinking game Brain Damage, which I found on The Webtender.
Remember to drink responsibly!