The other night, I watched a group of Boy Scouts plan a skit. Their Patrol had the assignment of teaching the rest of the Troop how you could make first aid supplies out of duct tape. They had the idea of doing a funny little show about a Scout falling out of an apple tree, and suddenly needing a stretcher, a splint and a sling. They threw joke lines and sight gags at each other, and put together a nice little script and demonstration.
But I noticed: at no point did one of the boys suggest that they should start their skit by saying, “At the conclusion of this skit, you will have a thorough understanding of how to manipulate industrial-strength adhesive tape for purposes of medical care.”