harleyjohn45 (4/4/2019)
Paul, I've done the same thing many times, since I don't move as fast as I used to, I'll start chocking wheels.
The main thing is to make it a habit, it becomes second nature. Military and government fleets have long drilled this into drivers.
Particularly on any kind of hill, parking is done such that the front wheels are turned that even in the case of a rollaway, the truck won't move far. The curb is first used as a chock as well, this alone keeps it from rolling.
Then the hand brake is applied. Finally the transmission is placed in reverse, or maybe 1st, or placed in "Park" if an automatic. This takes any strain off the parking pawl in an automatic, and further now the pawl isn't the only thing keeping the car from rolling down the hill.
Instead of one component - the pawl - holding the vehicle from crashing into a tree at the bottom of the hill - there's three, four if the driver further chocks the wheels.
Chocked wheels are also important when camping or in the field too. Like I said it's a habit thing. It makes the operator look at the parked vehicle and think about what happens, if somehow it were to roll. I use a chock block in the garage because I don't want to encourage the park or hand brake to corrode in place or stick if left engaged over the winter. I use lots of chock blocks when jacking up wheels or any work like that under the truck.
A walkaround is important too, collector cars don't get driven as often as they should. Don't run over the lawnmower, put the tools away, find a fire extinguisher and carry it.