A man expecting to meet a 15-year-old girl he had groomed online for sex got a rude shock when a web vigilante dressed as Batman confronted him instead, shouting "this man is a pedophile".
The real-life Bruce Wayne had posed as a 15-year-old girl named Chwk.Babe95 in an online chat and arranged to meet the man, who went by the name longfellow88, in a local US park.
But it was the dark knight who appeared in place of the teenager and the man he found waiting in the park was accused of seeking sex with an underage girl.
"This guy is a paedophile. He's here for a 15-year-old girl," the masked man can be heard saying in Batman's trademark husky growl, as a camera films the confrontation.
The man swiftly left the park to the continued taunts of the cloaked figure. But five minutes later longfellow88 posted this message to Chwk.Babe95 from a smart phone: "Thanks for getting me to drive out here for nothing. I had a feeling it was a joke."
Some viewers on YouTube applauded Batman for confronting an online predator while others have condemned him for not calling the police.