The shoe circus with Bill Gates? http://www.youtube.com/watch?v=ImyK29QLs_A.
And, am I the only person to get locked in the accessible* restroom at the Sydney conference center, minutes before her chalk talk? Perhaps the only presenter at TechEd who found herself calling for help and rattling the wheelchair-wide sliding door in panicked fashion?
In my experience, it is difficult to be an ambassador for Microsoft when you are locked in a toilet.
I promised to post some follow up stuff for people who came to my little chalk talks, like what to expect when you take an exam for the first time, dates for all of the Visual Studio 2008 exams, the PPTs, etc - will do so in a bit. Remind me if there was something else I was supposed to do, too. Stand by.