When I was a teenager I drove VW Rabbit. One winter I put some beefy snow tires in the front, thinking that's all I needed since it was just a tiny little FWD car.
I often drove like a moron back then, racing thru it's 4 gears while trying to use up every last drop of it's 40-some-odd horsepower (or whatever it had).
Well, it caught up to me a few times when I would end up doing a complete 360, completely by surprise while going around a curve. When that happens, it happens fast, and there's almost nothing you can do except for hang on and wait (and hope) for your car to point forward again, when you can then give it some gas and try to steer it ahead again.
I would have never believed it was even possible to get over-steer in a little FWD vehicle, but you can if there's enough of a difference in traction between the fronts and the backs.