As a result of the recent Second Life dB hack, I needed to change my password for my account just like every other user. Couldn't get it done online so needed to call for assistance. Customer service rep looked at my profile and said "you don't have a secret question" (not knowing that I was one of the founding team members). In response I got to utter: "I pre-date security."
Didn't work, still had to have him go find someone in the office who was there in the early days and have them vouch for me.