At what point does Michael Myers become supernatural? I mean, he lived a life as a child before he was sent to the insane asylum, right? Everyone seemed pretty shocked at what happened at the beginning of the first movie, so he couldn't have just been born evil. He never officially died, so you can't just say he is zombie or something like Jason or Freddy.
Then he stared at a wall for at least a decade...but he had to eat right? Like, if they gave him Ding Dongs or Peanut Butter Cups, would he have eaten them? Does he have a favorite food? I don't think there was ever any indication he was force fed through an IV or anything. Would they give him food, leave him alone and come back and it was gone...or would he have eaten it silently in front of the doctors. Also, if he eats, then he must have to use the bathroom, right? Would he use the facilities like a normal person or would he just crap himself? If the latter, couldn't you tell when he was near because he would just smell terrible all the time?
Does he work out? Sitting in silence plotting murders seems like a pretty sedentary lifestyle choice. Does being evil burn more calories or does he just have a high metabolism? He seems like he is in pretty great shape. No gut or anything.
Was he style conscious? I mean, how many movies are there and he never has a beard or long hair(not counting Zombie's movies). If he is shaving his face and cutting his hair, he must be somewhat concerned about what he looked like on the off chance that a victim or a family member ripped off his mask before continuing to chase them.