Hey guys. Below is the ball-joint hitch for my trailer, shot before I put it on the bike. I'm having trouble with the trailer dropping off the hitch when it hits bumps, even if I take it very carefully. I haven't yet dared to try it on major roads, or with a serious load because of this. It's probably not helped by the fact that my bike is 25.5 inch seat tube, so the hitch is probably a little higher than it was designed to be. Any ideas to make it stay on, or for some sort of safety thing, or both? I'm guessing that sleeving the upper part of the hitch with duct tape may help, both to reduce the gap a bit, and to provide a bit more friction, but has anyone any other ideas? I near killed myself this week carrying the groceries for 4 people in panniers and a small messenger bag!