Just yesterday a client's son called me out of the blue to ask me to forward my client's website to his mac.com account, because he was taking over the website.
I called up the client, who confirmed the transfer.
So, I called back the client's son and gave him the FTP username and password, to which he said, "What's FTP? I've only ever used iWeb..."
Out of curiosity, I asked for the URL for the new design. It's in a sub-directory of a mac.com member account, and the online store page comes up blank. The contact form has been replaced with a mailto link with the client's personal email address.
I wish them both the best of luck. In the unlikely event that they ask me to clean up the mess later, I will refuse, and they'll end up paying a lot more to someone else (I don't charge enough).