John H. wrote:

The fender of a truck, or the hitch will also work. I don't remember what device
you were talking about. I'd just hate to hear that the boat got away from you
while you were backing it into a parking space downhill.


That's a good idea about attaching a line to the boat trailer, run
through your trailer hitch and back to you in case boat builds up too
much speed. I had the wife down behind the boat and one of the wheels
of my trailer dolly was actually up in the air as I struggled to
maintain control. If it had gotten away I'd probably need a new boat
and a new wife.