The outgoing SPL tells you that there are two envelopes, labeled 1 and 2, that you can use the first two times you get into trouble.
Let's say you're on a campout and when the chuckboxes are opened, gear is missing, no matches, etc. The entire troop is furious with you. You open envelope number 1 and it says, "Blame the last SPL." This you do, and everyone is okay with that.
Later, at a court of honor, you e-mail instructions to everyone, telling them to bring refreshments, snacks, paper plates, etc. for the reception afterward. Unfortunately, you tell each person to bring paper cups, and they do. It's time for envelope number 2. You open it and it says, "Prepare two envelopes..."
Sorry. It's an old joke. Maybe you could make a skit out of it.