Why dont people keep service records?

[Homeslice]

Originally Posted by Mr Lefty

and again, I don't understand how you can take someones word that the slip of paper you have is genuine. like I said before you can buy the part, get the receipt, make a photo copy of it, return it, and boom there's your evidence that I "did the work myself"

While that may be true, you fail to answer my question. Why is it so difficult to hold onto a piece of paper? Let's say you bought a new clutch or set of shocks for your car. Why WOULDN'T you hold onto the receipt? Hell, it takes more effort to throw it away, than to keep it.