There's a reason the VW/Audi factory jacks have been dubbed as "The Widowmaker"!
The VeeDub guys even made a t-shirt out of it (kind of an inside joke thing).
My 5000 jack had a plastic base, which snapped in half with me under the car one time. That was like... :eek: Could have fell as I was doing brake work, but luckly held together long enough for me to get out of the way and get the wheel back on.