I dropped the production database thinking I was connected to the development environment. I actually remember thinking "Stupid MySQL, stop asking me to confirm

I dropped the production database thinking I was connected to the development environment. I actually remember thinking "Stupid MySQL, stop asking me to confirm, I know what I'm doing!" We had to restore from the nightly backup and the entire company lost a day's work. At another company I took a minor marketing landing page offline when a massive burst of traffic came in (it made some expensive API calls, I thought it was a DDOS attack). Turns out it was legitimate traffic. The marketing team had done a big ad spend to generate more leads and didn't tell me. All those expensive leads got 404s.