One of my first events, I found some clothes on the ground. Basically someone was heading off to the Earth circle. However, he saw me coming down the path so he waited. My character had no idea whose clothes they were so he ransacked them, took what he could find and went on his merry way.
Later that day, the individual in question cornered me and told me to give him back his stuff. When I asked him how he came to the conclusion that I took it, he said, "There are only two people who'd steal from me in town, and the other guy isn't stupid enough to do it." I was so pissed at the player that I just gave him the stuff back and walked away.
There is often some metagaming going on - especially if you are a 'known' "Professional Opportunist" but you just have to move on.