‘Trust fall’ is a common team building exercise where one member ‘falls’ backwards and must ‘trust’ another to catch them. But there’s usually a consensus before the activities begin. 

 decided to perform a social experiment–or prank depending on how you look at it–using the ‘trust fall’ concept.

He went around a park running up to strangers and with nothing but, “Trust fall, trust fall!” he turned his back and fell on his prey. 

Some catch him and many do not. It’s a ridiculous endeavor with interesting results. 

And before anyone thinks about it. Do not make this a thing. Please.