> mother's maiden name: 14t&7--ghv&32@/apER;Aa0)/90sIs

This isn't a good idea....

If using random text, there are many examples of, when asked to answer a secret question, telling the call centre droid "I just hit a few random keys for that one" and this being accepted.

You would do well to assume each call centre droid is a board kid more interested in his co-workers tits than your clever answers to security questions.