Dreams.

))Ahahaha... You reminded me of a dream I had. I was a werewolf, but I didn't know how to transform. Throughout the dream, I walked around with some huge stick (I think it was an halberd) and was slashing skeletons, snakes, and zombies. I was looking for a way to turn into a wolf... I even remember running on all fours after someone, very quickly, but I couldn't catch up.
The next morning, with my girlfriend, I finally beat Act 2 in Diablo 2.