Sam was eating a hot dog for lunch, while I had leftover steak:
Me: Did you know that steak comes from cows? I'm eating a cow right now!
Sam: UH HUH.
Me: And did you know that pork comes from pigs? And bacon comes from pigs. And hamburger comes from cows.
Sam: MM HMM.
Me: And, of course, turkey comes from turkey and chicken comes from chicken. And salmon is a type of fish. Did you know that we eat fish?
Sam: YES, AND HOT DOGS COME FROM DOGS!