Camper 1 should have a decent sized piece of a greenish/yellow fruit roll-up laying on their skin – “the scab”.
Camper 2 should be sitting next to Camper 1 – repeatedly pointing to scab and whispering/poking at it to Participant 1.
Camper 2 should increase the frequency and/or urgency of their interest/poking/eyeing of the “scab” to the great distress and aggravation of Camper 1 – to the point of having to slap Camper 2’s hands back several times and being a great distraction to the overall event.
Camp Leader 3 should be doing normal activities in front of the group – explaining the day’s events or whatever purpose the group has been called together to hear. Because of the distraction of Camper 1 and Camper 2,the Camp Leader explains to everyone that Camper 1 fell down and skinned up their leg/arm/face (wherever the “scab” is located) – make the story elaborate and embarrassing to add drama.
Just as the Camp Leader finishes explaining how the scab came to be….Camper 2 should reach in, pluck off the “scab” and eat it…..shock, terror, joy, gasps will ensue.