You expect this sort of thing from passengers, but the driver?: A NJ Transit bus operator was caught on a passenger's camera masturbating to completion while on the job.

41-year-old George Simpson was transporting passengers along Carteret-New York route last month when he decided to rub one out while driving through the Lincoln Tunnel.

The safety hazard was filmed by a Manhattan librarian who later said the experience put her off buses for good.

"I was in shock and disbelief," the unnamed woman is quoted as saying.

NJ Transit agreed, and immediately moved to suspend Simpson, who has been employed as a bus driver for the past 2-1/2 years.

Police also decided to take action, arresting Simpson for the June 24th incident on charges of reckless endangerment, causing or risking widespread injury or damage, and lewdness.

Asked about his behavior a neighbor of Simpson told the New York Daily News, "He must have been really horny. He must have seen someone he really liked on that bus."

[screengrab via ABC7]