It's a very strange experience to have your friends think you've gone crazy. Some will tell you so. Others will indulgently humor you. Still others will avoid you. More than a few will demand that the authorities do something to get you off the streets. During one unpleasant moment after I was fired from the think tank where I'd worked for the previous seven years, I tried to reassure my wife with an old cliché: “The great thing about an experience like this is that you learn who your friends really are.â€