Filler: On writing prescriptions

As a house officer on call in a suburban London hospital, I found my nocturnal forays often took me to areas of the hospital I rarely visited. Wandering around listlessly one night, I found myself in the radiology department. Deep from its innards, there emerged a gaunt figure I recognised as a radiology technician. He must have been 100 years old, or so I thought. I had seen him before, but …