I was making fried rice with ham in it and Blake was helping me.  By helping I mean eating the ham faster than I could cut it.  I had "good" ham in one pile and "bad" ham in the other.  He went to eat one of the bad ones and this is the conversation that ensued;
Me:  Don't eat that! It's all fatty.
Blake:  Why can't you eat the fatty ones?
Me:  Because it's disgusting, you don't want to eat fat because then the fat just gets in your body.
Blake:  Oh, so, that's what Dad did.
:)