Well, I didn’t figure that my theory would be very popular, but go back and re read what I wrote. I DO use safety chains/cables on all trailers.
I use whatever the trailer came with. And it’s not like I hookthem with baling wire to the hitch. I could keep the trailer behind me if it pops off the hitch or whatever, driving down the road.
But what I am trying to prevent is “going down with the ship” in an extreme scenario. Like say you’re cruising down the mountain, curvy road, and anoncoming vehicle crosses the centerline and clips the trailer. Or have to make an evasive maneuver to avoid that vehicle that crossed over and either way, end up detaching and the trailer drops off the roadside trying to take me with it. I like some chance of not getting yanked over the edge by a trailer that can or does weigh more than the tow rig.
Small chance that’ll happen? Sure.
But it’s the same small chance that you’ll actually have the trailer come disconnected in the first place.