When we moved out here to take over my fathers land, (we moved from Manhattan), I had never worked a tractor before, my wife was outside giing me encouragment while I got on and started up the $45k lawn mower. I got it moving good enough and didn't know about the gear changes, and wound up driving the thing into a lake, I stayed on the seat trying to do *SOMETHING* (I don't know what) until the water was over my head (a good 15 feet or so).
The person hurt? My wife, she got splinters in her butt from the chair she was sitting on, when she started laughing so hard and was wiggling herself all around.