Was the part really replaced?

How many of us were told that a part on the car needed to be replaced and we paid for a new one but found out it was replaced with a used part? Too many times for me and so many of my family and friends. I have learned two things: first, just to be sure you are not being taken advantage of…simply use a marker and make a little “x” some where on the part that is being replaced, someplace no one would look, so when the job is done you can see if the part was removed, this usually won’t apply if you can see that the part is shiny and new. The second thing I’ve learned is…all part replacements don’t require a NEW part, some things are fine when purchased as a used part, but also be aware that there are parts that should never be purchased as used because you don’t know the life it has left in it, it can break down right after you put it in your car. I can help with information on these matters, If I don’t know the answer I know someone who does.