Seems to me that is a quilt were microchipped, all a thief would have to do was submerse the quilt in a tub of water. The microchip in a dog is under the skin, which is somewhat waterproof. Maybe, the quilts could have a device like the department stores have on clothing (but harder to be taken off and waterproof, teehee), and the detectors at every door at the quilt show.