Killcord?

[Nasher]

"the boat’s operator, a sailing instructor, had reached into the water to pick up a tennis ball used for a lesson, when one of the students’ sailboats tipped over.

The sailboat's mast struck the motor boat’s throttle, sending the instructor overboard and the boat into a spiral"

https://www.bbc.co.uk/news/videos/cjjwqdwwv5eo

Reads like a statement from Sir Norman Fry of Little Britain.

[User name]

This kinda reckless safety stuff is so common. I know a guy who has a cable tie around his kill switch so he doesn't have to use the kill cord that he has wrapped around his tiller handle.

[Fenlander]

I would rather the, very occasional, times over-stretching for something pulls the cord and stops the engine than risk the situation suffered above.

And yes the Little Britain sketch was a classic.

[Brinormeg]

Brave young lad to make that leap!