Guy has this terrible slice, which he just can't seem to correct. So he decides to take a couple of lessons with the pro. "Tee one up and let me watch your swing," says the pro. So the guy does.
The ball goes screaming way right, over a fence, down a road, directly at an oncoming school bus filled with children. It crashes through the windshield, strikes the driver in the head, he loses control and the bus full of children goes rolling end over end down an embankment, completely engulfed in flames.
Back on the tee, the guy is horrified: "OH MY GOD! Did you see what I just did?!"
"Yeah," says the pro. "Here, try turning your wrist in a little."