An addendum to the "emergency brake" thread starter.
Years ago while traveling through a predominantly-Black neighborhood (yes this is pertinent to the story), I spotted an elderly White gentleman in a Buick on the lane adjacent to mine. I could smell the burning brake pads as he drove past...even managed to catch a glance at the E-brake light on his dash.
So I tried to catch up and get his attention to point out the anomaly...but apparently he thought I pulled up alongside in order to rob him or carjack him or something...after all, he was traveling through "hostile" territory and probably feared that he was about to be assaulted by a young Black man.
He sped up to avoid eye contact, so I sped up and honked my horn to get his attention. He sped up even more, and by this time we had gone about a mile or so and now smoke was emanating from the rear wheels...
...so I had to give up and let him go before he would either lose control and collide, or start a fire!