Two scouts lay down on sleeping bags on the stage. Two other scouts, pretending to be bikers "ride" over to one of the scouts who is on top of the bag and proceed to beat him up. They do anything they want to make it look like they have hurt him. They see him moving and "ride" off.
The scout who just got beat up turns to his buddy and says, "Two bikers just came through the woods and beat me up." His buddy turns to him and says, "It was just a dream, go back to sleep." This happens two more times, with the bikers beating up the guy, but on the third time, something different happens. The guy who gets beat up turns to his buddy and tells him what happened again. This time his friend says, "Fine, if it will make you feel better, I'll switch places with you." Now the bikers come back and go up to the same sleeping bag again, and one turns to the other and says, "This guy's had enough, let's get the other guy."