Have you ever seen the heavy rubber chocks with the steel handles cast in them? Some crews put a piece of rope between them so you can put one in front and one behind the wheel, then pull them both out at once if they are not wedge in. We were setting up on a job, and the line clearing crew pulled up, parked on a pretty steep up hill grade. The driver got out and started swinging the bucket down, another guy started gassing up the saws, and a young guy got out and grabbed the chocks. They must have told him his only purpose was to make sure the chocks were in FRONT of the truck tires. He put one in front of a tire, slid under the truck, and the rope was too short, so he pulled the first chock over some. He was just able to get a chock under the inside wheel on both side. They were in FRONT of the tires, on a steep uphill slope.New wheels? Looks like you don't trust the handbrake.
We got back from lunch and the chocks were still there. I guess the driver couldn’t see them on the inside wheels, or he didn’t look on the uphill side. Must have made one heck of a bump running over them when he left. That must have been forty years ago. Still makes me chuckle ever time I use them.