This is completely true.
18 years ago when I started driving I had a Volvo 340 thing, got a flat just before driving home to parents in Norwich from Leicester, as we got back noticed a rumble, father in law has a garage so put it on the ramp, the wheel bolts were loose and one was missing.
My old man used them to replace a tyre on his 730d a couple of years back and and his rear wheel came off a mile down the road, left with one bolt on.
Quite a bit of damage, they paid up, but not the point, he was just about to join the motorway.
2 weeks ago my brother got them to put a set of new wheels on his 530i that he had bought, they came with tyres on so just a wheel change.
Rear wheel came off and ripped his bumper off, amazingly no other damage, turns out there were bolts still in the hub, so had been over tightened!
3 different branches over different time periods, but is enough to put me off for ever.