This sounds like a great idea. I will try it next week. If the tubing is to go on after the trailer hook I wonder if the tubing as such is actually needed. Why not just cut a square (not a cylinder) from the tubing and use that instead. For that matter, those who do not have surgical tubing handy could just cut a small square from a large rubber band and push that down over the main hook after the trailer is on. What do you think?
Bob