Oil washing up on a beach on Thailand's east coast could be the "nail in the coffin" for pandemic-hit hotels and restaurants, local hospitality businesses said Saturday.The Thai navy and pollution experts are scrambling to clean up Tuesday night's spill in the Gulf of Thailand where at least 60 tonnes of crude leaked about 20 kilometres (12 miles) off the coast of Rayong province.Crews in yellow plastic protective suits were seen at Mae Ram Phueng Beach – about two and a h