Back when SharePoint was still foreign to me, and I didn't know the pain of administrating it, I had the idea that files were copied to my local machine. I saw no need to preserve backups from before I started, especially since they already existed on the server, so I got rid of them.

Also hooked up to SharePoint was an email handler. Whenever a case was created or deleted, an email went out to the entire department. Guess what happened when I deleted 250,000 records?

Fortunately, SharePoint has a recycle bin. Unfortunately, restoring those files generated another 250,000 emails. To the whole department.

I bought many donuts to appease the crowd baying for my blood.