This site says that the crossed chains will "catch" the hitch. I didn't know that.
http://auto.howstuffworks.com/auto-p...ty-cables1.htm

And it might even be against the law not to cross chains in some states! Yikes! Who knew?
http://forums.iboats.com/trailers-to...ns-421062.html

And a video to watch. Always nice to while away the time.
https://www.youtube.com/watch?v=bsw0-q4oo_4