What's the stupidest thing you've done lately?

I ordered a camera accessory on ebay this afternoon, quickly realised I'd ordered the wrong size so requested a cancellation. I went back to the same seller's page and ordered another and as soon as I'd paid I realised I'd got it wrong again so had to request another cancellation.
As they say, making a mistake once is normal, making the same mistake twice within a few minutes is bloody stupid and I'm clearly an idiot 🤣