I had to teach a 20 year old roommate how to clean a bathroom.

We were splitting up chores early on, and when I brought up him cleaning the bathroom this week, he said, "What exactly do you want me to do?"

To be fair to him, he was a super nice guy, and his question was genuine curiosity.  He wasn't dumb or lazy either.  He was trying his best to do his part while living on his own for the first time.

But his bathroom had been magically cleaning itself up until that point in his life, so he was just lost.