Obvious blatant issues (stuck throttle, riding the brakes, 1300hp) aside. I lost all brakes last winter out of nowhere in heavy traffic on a busy 4 lane road. Yes your first instinct is to put it in park, it stops the car, thats what your brain thinks, but my first concern was getting off that road and I did, while pumping the s*** out of the pedal, brakes were barely doing anything by that point, it had blew a line in stop and go highway traffic just before and the drive thru for food rid the system of 95% brake fluid before heading back out with no idea yet, I thought it kept pushing through the brakes due to wind as it was VERY windy. Oh, it'll wake you up when you go for the brake and the pedal just drops to the floor. I got it into a wendys parking lot slow enough that putting it in park did stop it.

I was 2.5 hrs away from home, had it towed to a shop and it was fixed a couple days later.