Yesterday one of our clients gave us the OK to launch their annual financial reports, 4 minutes before stock market closed and most of us was heading home.
Problem was we didn't have the proper access to their servers, so I and a senior consultant just spent a few hours calling our client and their IT infrastructure provider.

6 hours later, a large bill from the IT provider for after hours work, the job was done. A job that would take 5 minutes of uploading and 5 minutes of database transfer.