I had to clear an area on some of my land last year; of course I didn't have a machine like that, mine is a petrol hand rotovator. I didn't do it myself, I had someone come and do it for me, but being a feisty gal I just had to try it out for myself one time. Demmed thing was so hefty that when I started it up it ran away with me.
I was afraid to let go as I had one of my dogs, my Poodle with me, (she kinda doesn't leave my side if'n she can help it) and, stupid thing I know, but when my Uncle Tommy, who was with me showed me how to start it up, the demmed fool forgot to tell me how to stop it, and when I kept shouting for him to help me, he was laughing too much to come to my assistance. I was running all over the place with it until I finally thought to let go... doh!!!
I'm just er... biding my time now. *fumes* I got me a long memory and I'll think of summat to get him back. lol