Yesterday there I was at the checkout at West Brunswick Coles, trying to swipe my medicare card in the swipe, er, thing. Finally I realised it was my medicare card. 'Oh christ,' I said, 'that's my medicare card.' The woman serving (ostensibly) said, 'I didn't want to say anything...' My only response was 'It's not a test!' Then I managed to find my real ATM card. 'See,' I said to the other customers and the woman, 'same green'. That must have reassured them.