Why does this guy have an antenna? Is he supposed to be an alien? I don't think the animation has held up that well. It was a little anti climatic. I do think the set up was good. I mean, it's funny to show him eating nails in the flashback.

Wouldn't he notice that while he was eating them? This is at least passable. You could have probably used some spoken dialogue. I did feel kind of sorry for this guy. That must have really hurt.