Recently I have encountered a problem with my XBOX Live account, a game has forgotten I paid for it, at least while it's running. Otherwise it's fine. That being the problem, I called Microsoft's XBOX support this morning and we endeavoured to resolve the issue over the phone. 2 hours later the problem remained unresolved and i spent 35-40 minutes with an agent explaining that they could not resolve the issue without my Windows Live password.
The technical approach they wanted to take was to "recover my GamerTag" or an XBOX at their office, to do this I'd need to give them my hotmail.com password. What the ....
After my rant/lecture about privacy and poor system design I was left with an agent feeling utterly hopeless explaining that they would pass the issue on to management [with no expectation of resolution because they can only troubleshoot the issue in this one way].
How many people have had to sacrifice their privacy to troubleshoot an issue? Be careful what you hand to these [non-]technical agents of support. You're e-mail is a store of much personal information, protect it as you would a bank-card number.