I stopped for petrol on my way to work and decided to withdraw some cash from the Link machine while I was there. When I put my card in the screen went blank, then the machine rebooted and I got the OS/Warp startup screen.
Eventually it flashed up the PLEASE INSERT CARD screen again. My card clearly wasn't coming out and I own no further cards to offer it, so I advised the interested queue behind me to try the other cashpoint instead and hotfooted it to the nearest branch of my bank.
So, I've cancelled my card and withdrawn enough cash to meet my food and petrol needs while I wait 5-7 days for a new one. Then I get to memorise a new 16-digit number (what? Doesn't everyone do that?) and change my card details at all the websites where I shop.
This would happen on payday.