[William Tell]

general_re said: "I think the cleaning lady must have swiped it."

If you're feeling energetic, you might check to see if there were any anti-quarks in the area at the time it disappeared.

[general_re]

Poof! and it's gone, eh? No, even after a few glasses of rice wine, I doubt I'd be so careless as to leave it lying around where anti-quarks were known to roam freely. That would just be asking for trouble...