We sometimes used an old flat bed truck to pick up hay, and around age 9 I started driving it. The truck was left in first gear and I was told to use the clutch only. To go, let the clutch out slowly, to stop just push the clutch in. On level ground it would come to a stop in a couple feet.
All went well until the day we were in a hilly field. Someone yelled 'stop', and I dutifully pushed the clutch in... and the truck went faster. Someone finally ran up, reached in and turned the wheel. All the loaded hay fell off but at least I didn't kill anyone. /s
There was this one field that we called the ‘z piece’, because of it’s shape. It was rough, and not the place to train a baler driver. I was short handed, and chose to have my 16 yr old step sister drive. I told her not to stop unless we were in a flat area. Baler stops tying knots, drive to a flat area. Hay rack full, drive to a flat area.
Well, I lost a bale off the rack on a steep down hill, and she panicked, hitting the brakes. Jacknifed the whole setup. I jumped off to the side, and watched over 60 bales almost bury the baler. The front and back hitches on the baler got bent, as well as the hayrack tongue. That was one day that I regretted not just baling them onto the ground, and picking them up later.