It is strange how when something is done in our auto repair shop for many years it becomes part of a routine. Then a new generation comes along and they wonder why we do it! This is the case with us keeping the old parts we remove from cars as part of a repair or routine maintenance. A decade or so ago it was routine for a customer to ask to see the various automotive parts that we had removed from their car. It was the accepted thing to do. At one time we had special bags for them, and we would put them in the customer’s car. Now, it is very rare that we are asked to keep the parts. Sometimes when we come across a very unusual problem and it is of interest we might show the customer the parts.