Quick - what song comes to mind when you think of "werewolf?" Michael Jackson's THRILLER!!! That iconic music video propelled MJ into the limelight, and became the standard background music for every Halloween gathering since.
A werewolf is a funny creature. It's half man, half wolf. It is forced into existence due to circumstances beyond its control, ie. a full moon. In most werewolf tales, the person who becomes a werewolf is also a victim. Once he turns into this monster, he is absolutely unable to access his rational mind. He becomes a killer completely out of control. In the morning, after the moon has set, there is typically plenty of remorse for the havoc and destruction wraught the night before. Yet, nevertheless, we all know that in another month, that same man will transform and repeat those same actions. The mayhem is going to take place again in the future.