Being superhuman can't be all that great. I say this because every time I have a hangover (which is rarely, actually), like most people, I seem to develop bionic powers. The tiniest sounds are magnified by 300%, my nose picks up smells in neighboring counties, subtle variations of color and light pop out like a Peter Max painting, and it's pure hell. I'm guessing that it's not virtue and duty that keep Clark Kent and Peter Parker from slamming back brews at the local pub, it's self-preservation.