If I had a hybrid I'd substitute the siren for "get out of the way" recording. I've had morons walk behind my car as I was backing out of a parking space - while the car is moving...
Fortunately the safety system stopped the car in time... Can't change stupid...

 

Happens all the time. The safety systems are so sensitive, I literally back out of spots in shopping malls crawling inch by inch. In fact, many times I back into spaces to avoid thst challenge when leaving.