Running your propane Refrigerators while traveling?

OK her's my propane horror story. MY wife took our popup on a solo trip with some of her friends to go horseback riding in southern Illinois. She towed the pup while someone else towed her horse. The propane tank was loose and eventually fell off the tongue of the trailer and was dragging down the road. When my wife finally got pulled over by the state troopers who pointed out the tank they noticed that the dragging had worn a hole through the side. The tank was full and you would think that with all the sparking and such when the propane leaked out it would have exploded. No. My wife bought a new tank and had a great weekend. And yes I travel all the tine with the tank on and running the fridge.