According to one embodiment of the present invention, a system, method, and computer program product is provided for rebinding title keys in clusters of devices with distinct security levels in broadcast encryption systems. A functional or ornamental article which has at least one contact surface intended to come in contact with a human user includes a beneficial contact surface for covering the article’s contact surface and providing a beneficial surface contact compound adapted to come in contact with a human user touching the article. An internal printer is mounted in the printer body and is operatively connected to the image sensor to print the captured images on print media. Some embodiments include a first switch coupled to the circuit. A viewer receives a sense of the connectedness of the scenes from the transitional images. The method comprises applying an indication to a packet being sent through the network, the indication being selected in dependence upon a level of traffic determined for a subscriber associated with the packet and representing a per-hop behaviour to be applied subsequently to the packet.