[Explanatory preamble: I went for a blood test this morning before heading off to Lidl to do my shopping. I have to have the tests done regularly to check that I am not over/underdosing on Warfarin. A test used to be done by taking a sample from a vein and sending it to a lab for analysis. Nowadays though there is a handheld machine which can do the test from one drop of blood in about 30 seconds; all very clever. The machine has a barcode reader built in to it. I get an appointment letter with a barcode on it. The nurse scans the code, which identifies me as the patient. If I forget to take the letter, the machine has no barcode to ID me and so I would get the needle in the arm; I don't like being stabbed, so I always remember to take the letter with me and hand it over for scanning as soon as I sit in the chair for the test ...]
Nurse: Good morning, Colin - eveything okay?
ColinJ (handing over letter with barcode on it): Yes, thank you...
Nurse (looking down at cycling shoes): Did you cycle here?
ColinJ: Yes, I always do unless it is raining.
[Quick chat about the Tour de Yorkshire, which started today. Waits for finger to be pricked. Waits longer... Finally...]
ColinJ: Er, is there a problem?
Nurse: No - I'm just busy reading your shopping list!
ColinJ: Eh, oh, I, er ... I'm still half asleep!
[Takes back shopping list and replaces it with appointment letter!
]