What would you do?

A man with a battery operated, variable speed, hand drill (no bit in, though) is walking down the street holding it in his hand as one would hold a gun (ok, how else would one hold a hand drill?).  Do you suppose that even though it is Sunday he is doing home improvements?  Or do you think that he is so criminally insane that no one (even the bad guys) would sell him a gun, so he is relegated to using a drill for his nefarious ways?  Remember, it is New York City.

I AM crazy.