While cutting wood in his workshop, Jim the carpenter slips and manages to slice all his fingers off on his powerful electric saw. He screams and runs out of the workshop, sprinting in considerable pain to the nearest hospital.

After he has been waiting half an hour, a nurse emerges. ‘I’m sorry, sir,’ she says, ‘but without your fingers, we can’t do anything except stop the bleeding. Go back and get your fingers so we can sew them back on.’ Nodding forlornly, Jim wanders out of casualty.

An hour later, he returns. ‘Did you recover your fingers, sir?’ asks the nurse. ‘No,’ he replied. ‘I couldn’t pick them up off the floor.’