Your attention, please. Hello. I thank you all for coming to Worldcon; I truly appreciate my fans coming all this way. I don't want to spoil the mood, but my briefcase is missing, presumed stolen.
Now, my briefcase was securely locked, but the contents are worth millions. Please, keep a lookout for anyone with a locked black briefcase. If you find it, I'll be in my room at the Nelligan.
You know, I don't recall you ever owning a briefcase.