Thanks for your reply:
I am thinking of a Fire Situation. A friend just lost everything including her latest book (almost two years work and not quite ready to send to her Publisher) in a fire. Everything was backed up but wherever she kept the back-up went up as well. So: No Computer, No Passwords, No Copies of the Back-up Software that you have bought.
After the fire, you have just what you stand up in, your Bank Balance and the promise of a cheque from the Insurance Company. Also, with any luck, an External Drive, containing a recent mirror of your Hard Drive, that you keep with a neighbour.