...next time you go out. I left the boat in Havasu this weekend and when I went take off the trailer I noticed the nut on the bottom of the ball had come loose...real loose. I probably only had a couple of rotations left before the nut would have dropped off! It wasn't loose at all when I hooked it up Friday night so it must have happened on the trip out. So, before anyone loses their trailer, take a couple of seconds to see if it's tight!
That's my tip for the day, well that and don't pee in the wind.
Matt