h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

This is a warning. When you encounter what Earth folk call gamers, be prepared to use the towel for combat. They get hostile and violent and throw dice at you. My recommendation is to block with your towel, then whip them before they can react. This way, you can get in the first strike. Just beware of wargamers...they carry large boxes of pewter or plastic miniatures that can be thrown at a moments notice.
Also beware of the one's called Storytellers or Game Masters. They are armed with many very thick and heavy hardbound books that they prefer to bludgeon people with.
Oh, and as a side note...don't comment on their body odors or social skills involving women...