clepto tendencies

so, these two guys here at the table next to me in hte library just left, for probably 15 minutes, then came back. i overheard part of their conversation about going to the sigma chi house so one of htem could see their cousin. there are only 2 other people nearby and they didn't ask those people or me ot watch their stuff. are these people naive, or just ignorant? they are lucky that i am a good person, otherwise i would have a nice new expensive ti calculator, a new backpack with several books, and some new sunglasses. i wonder if they are just too rich to even care? i was half tempted to take their calculator and just hide it to see how they reacted.