I have had the car sideways quite a few times, a couple of times it was just under power and hit a wet patch.

My dad made me get our 528i BMW e28 sideways in the wet all the time with L plates on when I was learning to drive...his theory was teach me to control a car when he was there to help me and teach me than let me learn after passing my test. We used to also take our 16 sport mk2 escort on to army land and get that very crossed up.