A flame-retardant rubber composition for vulcanization, comprising an epichlorohydrin based rubber, red phosphorus, and a vulcanizing agent, in which the content of the red phosphorus is from 3 to 20 parts by weight for 100 parts by weight of the epichlorohydrin based rubber. According to the invention, a sealing plate covering the attachment screws is installed removably in a plate housing delimited by a plate housing wall provided on the handling device and by a portion of the base housing wall. A pest control laser or small autonomous or radio controlled aircraft under automated or human control may be used to disable a targeted flying insect. In some embodiments, the article may be a table and the surface may be a tabletop. A determination is made according to an on-demand basis, during execution of the program, whether a particular type of software code is to be loaded from the at least second computing device to the first computing device.