Fun Prank At The Beach

I know we are pretty limited on beach time this time of year in the Northland, but this is a classic prank. Why did I not ever think of this? I guess make sure the person you prank  is in shape enough to fall in this hole, and also has a good sense of humor. I can't understand what this guys friends are saying, but not only do they set this trap they don't even help him out of the hole....and someone is actually throwing sand on him!