techrecovery | Save =/= Save As (Reply)

ME: Good morning, thank you for calling the [insert name here] service desk. May I have your [ID number] please?
User: [gives info]
ME: Hello User, this is Klytus. What can I do for you.
User: I'm a complete idiot and I probably know the answer, but I need to ask.
ME: (never a good sign) Yes, sir?
User: Is there any way to un-save a file?
ME: Un-save a file? You made changes to a file, then saved it, but need to original version?
User: Yes. I hit "save" instead of "save as" and just lost 17 hours of work and need to recover it.
ME: Unfortunately, you've overwritten the original file. I can't get that back for you.
User: Is there any other way to recover it?
ME: If you have a backup with the original copy of that file on it, we can. Otherwise, sorry.
User: [Insert much swearing and self-depreciating remarks about what a moron he is here]

At least he was venting his ire in the right direction.