Pits

#1 pit -- dry, unsmelly -- the best. Not in the least bothersome.

#2 pit -- wet, unsmelly -- second best. You can see it coming, but it doesn't smell.

#3 pit -- wet, smelly -- a bad one. You can see it coming, and it gets you with a stink. At least you know who is to blame.

#4 pit -- dry, smelly -- the worst. You can't see it coming, and it gets you. The worst thing is, you never know who has it, and people might blame you, which in turn gives you a pit.