This morning I called Dragoslav and offered to visit him and his family in Oxford sometime tomorrow. “When can you come?” he asked. “You tell me.” “Come around noon for lunch and go around four.” That is a good friend—the one who tells you when to come and when to go. Our conversation reminded me of an ethnographic book about the American Plains Indians, which I read some thirty years ago. When a guest was ready to go, he would say: “Now I go.” The host would reply: “Go.” The Plains Indians must have been good friends, too.