Now, I never make a long trip without a full inventory of repair parts, tools, and tires. Though an additional eight hours of driving was a nuisance, I do not have any real horror stories to share though I have trailered boats since my teenaged years for many thousands of miles.
Surely, you have seen hapless mariners who have separated their tow vehicles or boats from their trailers on the highway or lost their whole rig, truck and all, down the ramp. Follow these simple lessons and you will not find yourself in such dire straits.