I've been towing for 47 years and have had only 1 personal incident. The truck in front of me threw blown tire debris. Swerving didn't seem the safe thing to do, nor was it an option at the time, so I hit it head on. The car got thru it OK, but it hit the trailer tire and blew it off the rim. Naturally, I knew it, but even still all passers alerted me to the problem during the minute or so it took me to get in the right lane and pull off the road.
Another time I was doing 65 and was passed by a truck towing a cruiser at about 75. I saw the trailer wheel was blowing black smoke (it wasn't turning) and layed on the horn to alert him (to no avail). I saw the tire / rim fly in the air 3 carlengths ahead of me and crash into the windshield of the 3rd car ahead of me. It caused the driiver to lose control and crash head-on into a tree at 65 mph. I waited till the ambulance came, so I don't know if the lady surviveed or not.
I am simply sick over the quality of trailer tires today. They don't last over 3 years, and the manufacturers warn you not to go above 65 mph. I personally follow that rule, plus I stop and check wheel bearings no more than every 100 miles. The 2 minute stop adds no time at all to the trip.
IMHO pulling a trailer at 75 mph is unacceptable. If anyone has a mishap it's fine to say you made it home OK. But that's not what is most important. The real issue is what damage you did (or could have done) to other unsuspecting drivers that had no responsibility for that flying tire.
