The man worked as an employee for the city of Kinokawa in western Japan, and from June 2007 to February 2008, he racked up more than 780,000 hits on adult sites, according to city official Tomiko Waki.
For perspective, that breaks down to about 87,000 hits each month and about 2,900 hits each day. Assuming the man, whose name was withheld, worked a standard eight-hour day, that means he spent about an hour each shift looking for adult content.
He logged about 170,000 hits to adult sites in July alone.
But city officials downplayed the man's huge amount of adult traffic by noting that some of the sites he visited register multiple hits for each visit.
Nevertheless, despite his prodigious porn consumption, none of the man's coworkers caught on.
"Each desk is set apart from the other," the official said.
No one would have caught on, either, had it not been for a bout of careless surfing — the man visited a site that infected his computer with a virus, which drew the attention of his supervisors, who eventually checked out his browser history.
Besides his demotion, the man's pay was cut by about $200 each month.