Luke: We need to split up to cover more ground. Joe, go North; Jack, go South; William, go West; Averell, go East.
Joe: What about you?
Luke: Me? Well, I am following you!
Joe: Of course. Don't expect us to be stupid enough to leave you alone here!
(all Daltons follow the instructions and leave, each one believing Luke is following one of the others)
Luke (alone): They really are dumber than I thought.