That was funny.
We were supposed to do a TA on the new Princess ship a couple of years ago. It started in Venice, but also went to Rome. Well, I had seen on tv a program about Italy's professional pickpockets. Being only slightly paranoid, , I took out an old wallet an created a dummy wallet. I took old credit cards and scraped off the magnetic stripe. I cut the numbers off. I photocopied currency with different denominations front and back. All kinds of stuff like that. Even our cancelled passports were sacrificed. I still have it, for when we do make that trip.