Awesome. This reminds me of something my friends and I used to do on our lake. You see, the seat on a three-person Sea-Doo was large enough for a sitting driver and a standing thrill-seeker. Yeah, you probably see where this is going. I'd take off my life jacket so as to not get cut (keep reading), stand on the back of the seat, hold on to the driver's life jacket, get the vehicle up to 35-40MPH, count down from three, and at one have the driver do a donut, which would throw me fast and far (and water at that speed == concrete).