The boys "helped" put out groceries on the shelf. One of them, the little one, decided it would be more fun to take them off the shelves, but still.
They were happily compensated with new treasures from the quarter machines. Everyone was happy...except maybe my dad who lost an hour of his productive time in addition to needing to fix anything the boys helped with. He did it with a smile, though, and I am very appreciative.