Glad to hear that, Mrs C. You'd be surprised just how readily people will divulge potentially sensitive information to just about anybody as if they were fire-proof. Loads of secure website ask for the answers to "secret" questions so that you can do things like reset a forgotten password, etc. Typically, these include your mother's maiden name, name of a grandparent, first pet's name, first school you attended, street you grew up on, etc.
I'm willing to be that a sizeable proportion of the replies the thread below fall into that category. I never use real data for those questions because it's so easy to find. I use song lyrics for all of those things.
http://www.theanswerb.../Question1012759.html