Originally Posted by
FullGas
the two shops I (infrequently) use typically put all worn parts in a plastic bag for the customer to inspect or discard as they choose.
doesn't apply to bar tape, tires, or tubes...
That's the policy of a LBS I used to work at - always keep the part and then ask the customer if they want it back. 99% of them say to throw them away, but it's a good precaution - there are tricky, difficult people.