Word on the street that the drugs heighten sexual pleasure has been a boon to his business. His return on three pills bought for 15,000 yen is between two and three times that amount. “I have been smuggling for more than a decade, but have yet to be found out by the police,” the man said. “I am very careful…While I am happy to make profits, I also am concerned as a Japanese about a further increase in drug addicts.”Japanese authorities have arrested the Iranian boss of a drug-smuggling group that allegedly hired some 1,000 of his countrymen to peddle hashish in Japan.