In all the times I used it, one car drop off it. Was some 2000 Buick fwd car I was doing the front brakes on. Was removing a wheel and seen the car start to roll backwards, before I knew it down it went, jack went sideways and helped limit the drop--still it was down touching one rotor on the ground...freak me out--no real damage done but I used to change the oil on that car just using the jack. That full day I was like freaking out cause you had like 2 seconds warning--i move fast but not that fast
From now on, the parking brake always goes on and even a block on both sides of a wheel if I'm going under it. ugh, fwd stinks in so many ways--until the snow comes