NAKHON NAYOK: Watch out Pfizer – a fireman who recently gobbled down fistfuls of live earthworms on TV claims the slimy, dirt-eating creatures give him extra stamina in bed. And unlike Viagra, they don’t cost 400 baht each. Paisit Chanta, 39, said he’d been eating worms since he was 10, when he got hungry while fishing. His wife, Chuleeporn Chanta, 40, believes worm-eating could damage his health. K. Chuleeporn was evasive when questioned about her husband’s claim, but did say that K. Paisit’s performance in bed over the previous 20 years had “not been deficient in any way” and averaged about four sessions a week.