Man terrifies his friend with excellent ghost/The Ring prank

Priceless: Terrifying, though
Priceless: Terrifying, though

One half of the ViralBoys - a prankster duo - vowed revenge after he was plied with sleeping pills and left in Old Town Square in Prague.

After the humiliation, Cenek devised the following prank to scare the wits out of his partner. 

He also filmed it, of course, and the reaction is priceless.