Pretty funny and scary at the same time.
Also, sorry to say, but, there are a few threads on this video already.
Enjoy and have fun with your family, before they have fun without you
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I worked in a Emergency Room, most of the "Accidents" were involving alcohol or some other mind altering drug in the mix of what happened.
I would guess the fellows in the video were on the other side of sober!
Too much risk of injury in that prank.