Oh, my gosh, if only I had video. Here's what happened:
Engage reverse to exit garage.
Shift to drive to exit driveway.
Roll at idle speed.
Realize that the seat is too close to the steering wheel.
Reach between legs to move seat.
Roll down gentle slope of driveway.
Seat SLAMS forward, crushing my chest into the steering wheel.
Over-react and firmly depress the brake, causing the seat to SLAM backward.
Before I can remove hand from seat handle, the truck AGAIN SLAMS forward knocking the wind out of my lungs and for the second time, smashing my boobs to hell. (Thank God I don't have implants.)
Geez, Louise, it hurt like hell but I laughed my ass off thinking how funny it must have appeared. Did ya ever see that awful horror flic "The Entity" about the demon that raped and savaged Barbara Hershey?
For MY video, I would state that an abusive poltergeist took control of the truck and beat the hell out me.