The 38-year-old plumber, who was arrested on Sunday, made 3,100 hours worth of free calls to the company, costing it almost 4 million yen ($38,730) in phone bills, a police spokesman in Takasaki, northwest of Tokyo, said.
"He gets excited by the woman's voice on the guidance tape," the spokesman said, adding that the voice sounded normal to the detective who was involved in the investigation.
The food company asked for its name to be withheld. The spokesman said police are investigating if the man placed an excessive number of calls to any other firms.
*Whistling*
Purgatorian Post #1294