When you stand on high, your friends know who you are. When you hit rock bottom, you know who your friends are. A friend in need doesn't mean you have money to spend. In that case, people all over the world can be your friends. The key is to be guilty and suffer together. Of course, some face-saving work needs to be done. Friends must have multiple friends and multiple paths, but you must know who you are sincere with and who you are hypocritical with.