I've worked with Kai directly for a number of years. He doesn't get all riled up easily. But he does take security very seriously. If you don't know Kai, you should. He's a Microsoft Senior Security Strategist and knows his stuff. He is routinely called upon by the FBI, Secret Service and Jack Bauer when "stuff happens".
So follow the trail at http://blogs.technet.com/kaiaxford/archive/2007/01/17/people-like-this-just-frost-me-security-considered-a-quot-burden-for-users-quot.aspx and you'll see what I mean. I don't know what it means to "frost" him, but considering he used to be an Army Ranger, I don't want to find out.