Thanks for the update.
Can you take pictures of the safety chains?
I can see the point of not wanting to be attached to the trailer for my own safety but that is exactly the point of the safety chains. If the hitch comes off or breaks then the chains should prevent the trailer from skidding across two lanes of on-coming traffic and t-boning a school bus full of nuns... It stays connected to the vehicle that controls its brakes. That is when you reach down there and max out (I'm speaking of my more common situation when my load weighs as much as my tow truck) the brake controller and start looking for an "out"!!