Fuzz balls and tests

We just introduced a beer glass to our room. We get to put a fuzzy little ball in the glass every time someone writes a new automated test, helped someone else or perform code review. In other words, work for the team and testable code. We also have a thorn glass. If you don't update a test or create a new during refactoring, you get to put a ball in that glass. If there are balls in the thorn glass, you must first empty that glass before you get to put new balls in the beer glass. When the beer glass is full, we get to drink beer.