Haha, the only time I've had that motion in the car was at VIR, last session of the day my instructor was encouraging me to brake later. On the back straight I braked really late and kinda trail braked into 14, the little kink at the end of the straight. I was probably down to 70 or so by then, but as soon as the back stepped out, my sphincter clamped down on the seat with suprising force, needless to say, I wasn't quite ready for that, lol.