Bad Bovine Humor

Me: What did the cow saw to the bull who said something ridiculous?

Eryn: I don't know, what?

Me: That's bullshit.

Eryn: Mom! That's silly. What did the cow say when the bull said something ridiculous?

Me: What?

Eryn: That's bullshit.

Me: You just wanted to say "bullshit."

Eryn: Yes!