A boatie who was flung off his boat into the churning sea stripped naked and waved his board shorts in the air in a desperate bid to be rescued. David Simpson, 64, was aboard his yacht MV Focus in waters off Caloundra, on Queensland's Sunshine Coast, on Tuesday when a violent storm swept over. As he rushed to tie down a dinghy, a massive wave smashed against the vessel and knocked him overboard. A rescue operation was launched after the vessel (pictured) was found at the northern tip of Bribie Island, off the coast of Caloundra, in the Sunshine Coast, about 4pm Tuesday with the engine running and no one on board