Interesting news article on the web last night about an Appeals Court in Michigan that thru out a verdict that was against a tire dealer who had sent a car out with tires that had been rotated but THE LUG NUTS ON ONE WHEEL WERE NOT TIGHTENED !!
The car crashed a few miles from the shop and there were injuries ! The "higher level justices" decided that rotating tires did not "legally" include having to tighten the lug nuts and the original case was thrown out !

I don't know how to show the "link", but you shouldn't have trouble finding the article if you search.