The "Just For Laughs Gags" folks are professional pranksters when it comes to light-hearted fun.
In this prank, they ask a stranger to help them move a wheelbarrow for an injured foremam.
They then stumble upon a most unfortunate scene while the foreman desperately tries to communicate to the worker who is using a chain-saw (a circular-saw is probablythe more standard tool) to cut a piece of wood. Then, it seems like the guy holding the wood is cut in half.
Check out the reactions from these onlookers.