To be devils advocate:
First might I interject that apple makes its os based off of the free bsd engine (a unix based system for the layman) and unix sys admins have known how to reset the root password for 20+years. Someone doesn't need to call apple or a repair facility to do this, just have direct access to the computer. Apple just give their customers a pretty GUI (the wonderful graphics that you can click on) to do this with. A repair facility or company giving this information allows them to legally stay out of property disputes and other legal errata. Not to mention save themselves a ton of legal fees. You can pick up a unix sysadmin book from any major bookstore and find this info. It actually protects the company to provide this information regardless of the caller/customer. if you want this information for yourself go to any bookstore in america or look it up online (a point made by a previous poster).
