Safety chains - our jurisdiction requires trailer safety chains to be attached in such a manner as to prevent the trailer hitch from contacting the ground in the event of an accidental uncoupling.
I cross them, and twist them to shorten them to just enough length to allow turning, and connect them right near the receiver - either the truck's safety chain connection or the Super-Truss's - depending which hitch I'm using.
On our Super-Hitch that connection is close to it's receiver, i.e. 3 ft back from the truck.
There has to be about multiple failures for the Super-Hitch to disconnect from the vehicle - 2 x 5/8" receiver pins, and 2 sway chains/connections, etc. so I don't extend safety chain forward to the truck's hitch, but you could using a kiniffle & shackle to first connect the required way to prevent grounding then on to the truck.