In September, Jiang Sulian of China had to undergo a colonoscopy when she arrived at Bangkok airport. The reason? She had stolen a six-carat diamond (wor th Rs. 18 crore approx) from a Thai jewellery fair and swallowed it. Lodged in her large intestine, the 39-year old fake tourist needed surgery as the large diamond couldn't be removed naturally.In November 2012, a 25-year-old unnamed Lebanese smuggler was detained at Johannesburg airport with 220, yes 220, polished diamonds in his stomach. Headed to Dubai, the man was caught and forced, with the help of laxatives, to give up the diamonds (worth Rs. 14.9 crore approx).35-year-old "nervous- looking" Abdul Rehman of Sri Lanka was apprehended when the metal detector went off at Mumbai airport in March 2013. Turns out he had hidden five gold biscuits worth Rs. 15 lakh in his rectum. The passenger from Dubai, said an airport official, then "squatted and got the biscuits out". Meanwhile, a woman was once caught the same year at Mumbai airport with 1.5 kg gold sewn into her hair bun.30-year-old Chan Shih wore loose clothing and tried to explain his awkward walk, saying he had a bad back to the Chinese airport staff who detained him in March this year. A closer search revealed he was carrying 146 iPhones strapped to his body. When the detector went off, the man said it was his gold bracelet — but it was the several phones cellotaped to his stomach and calves that were the real problem.Two Sri Lankan men — Shadul Hameed Mohamed Issadeen (48) and Habeebu Mohammed Izadeen (53) — found an ingenious way to smuggle 436.8 gram of gold (worth Rs. 13 lakh approx) in April 2013. They stuck it in their mouths, below their tongues, then got past Lankan immigration using the excuse of maun vrat (vow of silence). At Chennai airport, while mumbling to each other, they were caught by authorities. "They opened their mouths, but did not lift their tongues. We checked and found the gold," said an official.