Talk about shaggy dog stories. I thought my series on Freud & Dogs -- see Part I, A Case of Late Life Puppy Love; Part II, A Dangerous Method (If You Fear Dogs) for background -- was finished. In Part III, I described how Freud escaped to London from Nazi-occupied Vienna with his chow, Lun. It's a sad last chapter of Freud's life. Lun was quarantined for several months and