DD:

I can't remember which comedian had a routine about finding out that hotdogs contained beef lips. This kinda grossed him out - he always thought beef lips were the sort of "beef by-product" that went into dog food. \:\(

Then he realized that there must be a part of a cow worse than beef lips that went into dog food.

"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
[Linked Image from i.pinimg.com]