Originally Posted by
ThermionicScott
Maybe in Malaysia. The "normal" thing is to throw away the old part since why the hell would the customer want it back?
+1 Normally the shop will discard worn components unless the customer specifically asks to have them returned. Even then they could give you a badly worn chain from someone else's bike to convince you you really did need a new one.
Some not terribly honest auto repair shops keep sets of worn out brake pads around to convince customers they needed new pads without telling them the pads aren't from their car.