Other than a few pencils in elementary school, I've never had anything really expensive stolen from me. Although one time my mom's car got broken into and the other things the thief took was her CDs.
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Also a bro of mine got mugged once and he told the mugger he only had 5 bucks and handed it over, and the mugger bought it and left, but he actually had a hundred bucks and an iPod on him.