Post V1, any number of things can happen to a plane to make it un-flyable...to persist in the concept that all planes fly after V1, no matter what is quite silly....None the less, I have been admonished for stopping a plane on the runway (sim) in a post V1 cut, plenty of runway, but got the 'debate' from the sim instructor. I simply reply that in the real world, saving lives is what it's about. On that note, I find it funny, that the guys that fly the plane off in the sim, only to hit that mountain, because as they were fighting the fire, they forgot to make the turn...simply got to do it over again...I like how another poster put it...' with a burning lake of lava at the end, using up 90% of my runway for balanced field, sure, it's a go after V1...but with another 5000 ft left, a 1000 ft stopway at the end, and a thousand miles of Nebraska corn fields beyond, why would I fly a burning wreck up through the air and become a test pilot with a planeload of people?'