Dead shark left on doorstep of Sea Dog Brew Pub in Nantucket NANTUCKET, Mass., Aug. 2 (UPI) -- Officials on Massachusetts' Nantucket Island said they do not know the identity or motive of a "prankster" who left a shark carcass on a pub's doorstep. John Smith, Nantucket's public works operations manager, said his office got a call at 7 a.m. Thursday to remove a dead shark from in front of the Sea Dog Brew Pub and he had to call in a front-end loader to cart away the 6-foot-long, 100-pound shark, the Boston Herald reported Friday. "In the summertime, there's always somebody who's a prankster," Smith said. He said a prankster filled a street with small "black back" tuna a few summers ago. "Fortunately this doesn't happen that often," he said. Sea Dog Brew Pub manager Jimmy Agnew said he was also perplexed by the shark. "It just made for an interesting day," he said. Agnew said a couple of people had to be removed from the bar before it closed at 3 a.m., but he didn't think any of the incidents were severe enough to result in a dead shark delivery. Smith said the carcass is being sent to be processed at a landfill and will eventually become topsoil.