Cardboard boxes wont help if the driver runs you over.
Jean Claude Van Damme is known for his epic splits skills in movies like Bloodsport. Check out this stunt he pulls off for Volvo. He's still got it!
You are supposed to use a trailer when you take your jet ski out of the lake. When you try to load it into the back of a van, you FAIL!...and almost drowned.
I guess he didn't see the giant white van driving down the street he was about to land in.