A woman getting married for the fourth time goes to a bridal shop and asks  for a white dress.  "You can't wear white, you've been married three times  already" says the sales clerk. "Of course I can, I'm a virgin." says the bride. "That's impossible", says the clerk.  "Unfortunately not" the bride explains: "My first husband was a Psychologist and all he wanted to do was talk about it. My second husband was a  Gynecologist and all he wanted to do was look  at it.  My third husband was a stamp collector, God I miss him.