I can sort of imagine the feeling. My buddy and I ran his Mazda 3 into a small lake/big pond once when the car started oversteering around a corner while cresting a long hill. We were going about 80, but he just had to dab the brakes when the back started sliding a bit. That's what put us around--he should have stomped the gas to pull it straight.
Anyway, I'd get that horrible butterfly feeling, except way stronger than I've ever felt it. I probably wouldn't say much, just make a bunch of "oh crap" noises. I might pass out on the way down.