When I was 7 and went to the zoo with my second-grade class,...

When I was 7 and went to the zoo with my second-grade class, I saw chimpanzee eyes for the first time - the eyes of an unhappy animal, all alone, locked in a bare, concrete-floored, iron-barred cage in one of the nastier, old-fashioned zoos. I remember looking at the chimp, then looking away.