Parts of me that I don't like much

I got into the elevator here at work yesterday, and pressed the button to head down to the lobby for lunch. Two girls jumped in just as the door was closing and pushed the button for our top floor. Whoops! They were headed the wrong way. I was just about to tell them about their mistake when I heard:

"I just can't eat pigs, you know? I don't mind eating cows, but pigs, you know, are smart and stuff".

And I shut my mouth.