 FAKE: When Shaggy is packing the picnic for outside after Moonscars  ghost wrote the threats, he packed a sandwich that was way too big  to fit into the basket. So, Shaggy and Scooby ate the ends of it  until it fell into the basket. But later, outside at the picnic,  when Shaggy takes the sandwich out, it looks as though they never  ate on the ends at all. (The bite marks are gone.)