If any of you have seen The Big Bang Theory, then you will know that Sheldon takes nerdy to a whole new level. He's so nerdy that he has his own nerdy planet, with a nerdy alien race that normal people can't even communicate with. Well, it turns out that I live on his nerdy planet too. He finds the science in fiction hard not to think about, as well.
Here is Sheldon discussing the scientific inaccuracies and of Superman:
I find this video better, but upon user request I cannot embed it.
And here he is trying to reason out the science of Superman doing his laundry.