Never in my life I was scared as today.
I recently left a big company to work for a small one as the first internal developer.
Had a small issue in the production server. The fix was easy, just remove a single table entry. And... *drum roll*... I forgot to add a where clause. All orders were lost.
No idea if we had backups or anything, I quickly called the one other IT dude in the company.
He had no clue where are the backups and how to find them.
Having some experience with Nmap, I quickly scanned our network and found a Nas device.
There was a backup, whole VHD backup. 300GB of it, the download speed is around 512kb/s. No way I can fix it before management finds out, but then an idea came to mind. Old glorious 7zip. Managed to extract only the database files, sent them to the server and quickly swapped them. Everything was fine... The manager connected 5 minutes later. Scariest 45 minutes of my life...