When my cousin was younger, he was so excited to go fishing and he was running down the boat ramp at diablo east and tossed the boat keys to his dad who had just put the boat into the water and was drifting away. He overshot him and the only set of keys he had went into the lake. My dad couldn't help but laugh but man was my uncle pissed!!
Turns out they had a key from a yamaha ATV and it started his boat motor.