AAawww- come on sky master-- you know that only on Carnival would you have your underwear stolen--
One thing that struck me as strange--the o.p. said it was a few days into
the cruise before the undies were discovered to be missing. Normally one unpacks all or at least most of the clothes right away and doesn't leave them in a suit case for several days. Seems like the missing undies would have been discovered right away instead of a few days later.
In my past years I have known a couple of ladies who got so plastered they forgot certain parts of their wardrobe and left them in odd places.
Strange things happen.