26. Thad’s a thief. While casually browsing over the merchan…

26. Thad’s a thief. While casually browsing over the merchandise at Xavier’s, a fashionable jewelry store, he skillfully pockets a small emerald pin. He takes the pin to Happy Harry’s, a respected neighborhood pawnshop, where he uses it to borrow $500 from Harry. The pin is in Harry’s possession, and he has Thad’s agreement that it will stand as collateral for the loan.   Has a security interest in the pin with Harry, as secured party, ever attached?