There was no last animal I treated. When young farm lads started to help me over the gate into a field or a pigpen, to make sure the old fellow wouldn't fall, I started to consider retiring. The great moment was one day when I was stitching up a cow's teats--they often get cut, you know--and my glasses were sliding down my nose. Suddenly I thought, Wight, you're too old for this. But it was a gradual transition. I just did less and less. It must be terrible to have a job you very much love chopped off.