When I was at Bubba Gump's in Orlando, they actually encouraged us to use a celebrity's name for them to call when our table was ready! I vetoed K's initial choice because it was sick, so we picked Springsteen.

A training I recently took used Presidents' and Founding Fathers' names as examples rather than the tired old John Smith and Mary Doe, which I thought was clever and creative.

A good way to foil hacks is to put fake names in security questions. I've been so tempted "mother's maiden name" Elizabeth Windsor (aka QEII)!