Got into it with a fellow guest at the quiet pool in Sian Kaan yesterday. I moved an umbrella from between a couple of chairs that were not occupied, to between our chairs a dozen or so feet away. There were resort towels on the chairs, but no personal possessions left with the chairs. I didn't feel I did anything wrong because there are signs all over the resort stating that leaving your towel to reserve space on the beach is considered unacceptable by the resort management. When this guy and his lady showed up and asked me if I took the umbrella, I said i had, and he stated he was going to take it back. I said no and we briefly argued over whether the practice of reserving with your towel was acceptable. He backed down. It wasn't a loud argument' however being at the quiet pool, suddenly I felt like all eyes were on me and judging me for my actions. Did I do the right thing? Was I wrong in my position?