It's all a joke until someone gets hurt.
And that is exactly what happens in this video, where this duo's ghost prank backfires tragically. This was uploaded by Youtuber Papacrazy.
The duo jump out at a passing car dressed as ghosts, but after being cornered, the driver decides to escape by speeding into one of them, injuring him.
He only suffered a gnashed knee. It could have been worse. Watch this tragic prank: