Oops! I actually got to see one like that live. The husband in the boat was yelling at screaming at his wife and the more he yelled at her, the more she pushed down the accelerator while she had it in reverse.
Seen that firsthand at Fishers up on Mille lacs. I was about 12 at the time and it actually turned out to be some teachers from my high school. Stick shift truck and they forgot to set the parking brake!