That reminds me of an old joke / game. You ask someone to reply to some questions as fast as possible, and then you just ask for the color of white things. "what color have clouds? White. What color has my shirt? White. What color has snow? White." And so on... Then, after 5 or 6 questions, you ask "What do cows drink?" 99 peace T of all people will reply "Milk", tho "Water" is correct. (Yes I know that calves drink milk, but an adult cow does not.)
This is used as an example on how you can provoke a Freudian error artificially in linguistics.