Shed mystery 'poltergeist' was mouse "A man who thought he had a poltergeist was amazed to discover a mouse had been "stockpiling" items in his shed. When screws and metal objects kept reappearing in a box containing bird feed, Steve Mckears thought he "was going mad". The 72-year-old from Severn Beach, near Bristol said he found a screw in a tub of crushed peanuts in February. After the mystery continued for several weeks he set up a camera which revealed the rodent responsible." "We were amazed at what he was doing, we just couldn't believe it," he said."