Well believe it or not, my buddies rear wheel came off. It didn't happen at a high rate of speed. It seemed as if the lugs weren't tightened properly. nevertheless the dust shield was damaged just a bit from the impact of the car hitting the ground.

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1995 E420 152k
1991 300D 2.5 348116 daily driver
1992 300E 2.6 196k-work in progress(head gasket)
2002 BMW 745Li 93k