A thermal actuator for a rotating shaft shutdown seal that has a piston with a portion of its axial length enclosed within a cylinder shell with a material, such as a fusible link that changes state or deforms above a given temperature, interposed between a closed end of the cylinder and one end of the piston. A fat-soluble fatty acid ester of ascorbic acid such as palmityl ascorbate andor tocotrienol andor an -hydroxy acid such as glycolic acid is applied with the lipoic acid andor its derivatives in some embodiments. Each line card receives its respective packet from the fabric switch and further duplicates the packet to obtain a duplicate packet for each egress endpoint of a service associated with the packet that is eligible to receive such a duplicate packet. A strap can be attached to the dental device holder using the attachment elements. The device may be realized as a computer program product, or as a small portable unit, which may be worn by a person to automatically watermark anything spoken.