I see more and more idiots driving with trailers who have no concept about what they are doing. They speed, cut in and out of traffic and generally don't deserve a drivers license, let alone be towing a trailer
Some years ago a person was towing a decent sized boat had the wrong sized ball and no safety chains. Whatever happened next was the boat came off the ball, went off the road striking two young girls riding their bicycles, killing one.
After that police were pulling over anyone towing anything.....The driver of that vehicle faced criminally negligent charges.