Two aliens land in the desert near an abandoned gas station.

They exit their spacecraft, approach the gas pumps, the first alien says: "Take us to your leader!" The gas pumps, being what they are, say nothing. The first alien repeats himself, to no effect. Finally, he pulls out his gun and points it at the gas pumps, saying: "Take us to your leader or I'll shoot!" The gas pumps of course, do not reply. The first alien takes aim, and just before he fires, the second alien says: "Don't, you fool!" Too late, the first alien fires, causing the gas station to explode. They land miles away, and picking themselves up, the first alien says to the second: "How did you know not to shoot?" to which the second alien replies, "Well, anyone who can take their own dick, wrap it around themselves three times and stick it in their ear, you don't want to fuck with them."