Before I continue, let me say one thing.
If you laugh, you will be banned for a long time. I don't care who you are, you'll still be banned.
Alright, I lost a few thousand files, meaning I have to re-upload the files for the Mario Paint Wiki, the LOLCats section, another forum I'm hosting, and a BUNCH of miscellaneous files. (Don't worry; the databases weren't touched.) Why? When I clicked the "Publish Site" button, I received a message asking if I wanted to overwrite some files, which I promptly clicked Yes to. I don't know if I accidentally screwed up or if the next message was wrong, but I confirmed the deletion of many files. I am really glad this forum wasn't screwed up. I only realized it when I came back and saw "Deleting pages..."