Its an old classic, still great. Just a note, YouTube movies can now be embedded into the forum with 'youtube' tags around the movie number, in this case 'C8_WPHEhkYA'
That's learning the hard way that you have to hook up to the frame, not the bumper. If you don't know that, then it is just a matter of time until you will learn the hard way. Hopefully he was fully insured for stupidity.
You can actually get insurance against stupidity. It is called "Errors and Omission Insurance". We have that in our company because some "stupid" sales person may say something that could potentially kill the customer (our products are life and death related).