I know full well I have innate prejudices, of which I'm thoroughly ashamed. Even though my husband is a jet-black African, I was dismayed when the optician I was booked to see turned out to be an African lady (from Nigeria) I immediately thought, "Oh dear, she won't be any good." Isn't that terrible? She was perfectly professional and competent, and we had a nice chat. Mea maxima culpa!