Glimpy:
I milked a cow once, you know it's got four faucets to it.
Danny:
What for?
Glimpy:
Well the first faucet's for buttermilk, the second's for bottled milk, and the third's for evaporated milk.
Danny:
What's the fourth one for?
Glimpy:
Come to think of it, this cow only had three faucets.