Today there’s a field trip to the museum: how boring!. Just as they arrive, Howie pulls out some chocolate cookies and accidentally gets some chocolate on a painting. The kids try to clean the spot with a rag but it just gets bigger. They keep rubbing until the spot becomes a big stain. They have to do something, and quickly: they can make another painting just like the first one, so no one will notice. The new painting now has four different styles and looks nothing like the original. Their arrives and marvels over the painting and the mixture of styles, but the museum guard tells them that it’s not a painting, it’s a sheet they use to protect the wall. The teacher has the great idea of hanging the sheet at school. The new painting is a great success.