Sort of related - preCOVID I left my luggage with Beach Club Bell Services on my departure day. Hours later, I went to the desk and gave them my ticket. They brought out a shopping bag, and nothing else. It was not my shopping bag. They had to go back to get my luggage.
If what they brought out was better than what I left, it would have been easy to just take it. (For example, if somebody had thrown some old stuff in the shopping bag and they were given all of my luggage instead of their bag, they might have decided to forget the shopping bag and take my luggage, if they were dishonest.)
And on arrival day (on a different trip) I left my luggage with Beach Club Bell Services because my room was not ready. I went back later to get something out of my suitcase. The Bell Services castmember just let me in, showed me where my stuff was, and walked away. It would have been easy to steal from someone else's bags if I were dishonest.