Car falls apart when lifted

I really get upset when people in our industry try to make their shop look good by bashing the defenseless last shop who worked on your car. As a matter of policy I greatly discourage it. None-the-less, this case is irresistable. This explorer had a bunch of front end parts installed by some other shop. They did all the easy stuff and passed over the hard work, changing the ball joints. Trouble is, usually the ball joints are the greatest safety concern. In this case when we lifted the car the upper ball joint fell out of the spindle. Can you image what might have happened if this had fallen apart out on the road?