A guy on YouTube named Sam Pepper
just pulled a prank where he kidnapped someone and then pretended to murder
the guy's best friend in front of him. The friend was in on it, but it looks like the victim actually fell for it.
They tied him up in an alley and threw a bag over his head, and then took him to the top of a building and made it look like they shot his friend in the head. They waited for almost a minute before they told the guy it was a "prank." But he forgave them fairly quickly, because they filmed a follow-up a few days later and he was cool with the whole thing.