My original idea was to go as a Proctologist (complete with scrubs, head-mounted reflector, rubber gloves, and flashlight), but I was waylaid with a migraine late in the morning and took a bunch of Tylenol PM to sleep it off ... so I was unconscious for most of the day. I woke up at 7:30pm, with nowhere near enough time to assemble my planned costume.
So instead, I launched the backup plan: I put on normal clothes, and for my costume, I deleted my blog; I was a Potential Promoter (or Possible Purveyor) of Pedophilia.