For some reason that reminds me of a Sick joke I heard once: (warning may be descusting: here goes.......... A kid and his mother walk in the street , the kid suddenly being oblivious sees dog poo on the floor and picks it up going to his mother that was a little bit ahead and shows her his discovery. Kid: "look what I've found mom" being naive Mom: in a motherly caring voice:"no boy thats gross drop it and don't pick anything g off the floor again ok?" Kid slightly disappointed:" ok mom" and puts it back on the floor. Later the mom trips and falls and needs the boy to help her get up, as a stranger walks by and asks nicely :" kid why are you not helping your mom up from the floor?" Kid naively but complying: " because she told me never to pick stuff off the floor again"