Robot 1: Do you know where milk comes from?
Robot 2: A tree? (bzzzzt)
Robot 1: Wrong! Here’s a clue. (mooo)
Robot 2: A cow?? But you said meat came from cows!?
Robot 1: It does! But cows also give us milk!
Robot 2: Cows give us meat and milk? Apples may be my favourite fruit but cows are my favourite animal!! Whee!