People are messy, unpredictable things. Author: Mary Roach Copy Quote More from Mary Roach “The human head is of the same approximate size and weight as a roaster chicken.…” “Entomologists have a name for young flies, but it is an ugly name, an insult. L…” “Here's the other thing I think about. It makes little sense to try to control w…” “Gravity disappears again, and we rise up off the floor like spooks from a grave…”