Where: Quartier Savant, outside Shop II.
When: Occiasionally
What: The door to shop II keeps on being found unlocked. I found the door unlocked and opened it to reveal Monsieur le Baron de Snifferington, flagrantly trying to stalk Cousin Brielle or Mademoiselle Lawrence, la Directrice of la FLeur d'Ambre:
Recreate: I presume watch the Baron in his sordid wanderings.
Ideas: I think the Dloo Nobleman NPC might be opening the door when he gets stuck.