Ooh ooh! I got one even better!!!
Everybody wonders about the knocking from their car; unless it's coming from the back of a Hearse, it is much more frightening.
(Or an oppositional sentence, where it is kind of the same setting. lol)
The driver of the Hearse heard knocking, much to his relieving discovery; it was not radiating from the motor.
(Which, recently, I heard some lady's voice mumbling in the back of my personal funeral coach... along with some loud knocks, which uh... yeah, I was about to go for a drive my coach. Less to say, it's going to take a lot more than that to scare me off of a cool car! lol)