I really knew drinking games once. The worst 2 I recall were "3 Man" and "The Circle of Death". 3 Man was a dice game where I think no matter what you rolled, somebody drank.

The Circle of Death involved placing all the cards face down in a circle and then turning them over. Almost any combination of turning cards over resulted in someone drinking.

And my favorite game, "If You Get Hit in the Head With a Marshmallow You Must Drink" which is pretty self- explanatory and only involves a bag of marshmallows and beer. And usually a bartending with a good sense of humor.