I have been on about 15 cruises. I have only had one thing stollen. It was a silver money clip I purchased as a souvenir. It had no money in it. This theft was largely my fault because I left it out on the counter in the bag from the jewelry store. I should have put it away somewhere or in the safe. This was twenty years ago and I cannot remember if the "Stardancer" had safes or not.
Cruises are vere safe, in my opinion.