They're parasites from outer space. The goverment has been trying to hush hush this phenomonon for years. As long as your take appropriate care they cause no harm. On the other hand, if you don't, things can get ugly. BE VERY CAREFULL to dress your cables appropriately. Should your other cables get in contact with them, they will start to breed. Then they will crawl back into your power lines. If they succeed in getting into items such as toasters, well then your at their mercy. Having a ravenous appetite for electricity and being removed from the source, they will overtake your mind to the point where you will crave what they crave, electricity. Remembering where they first recieved this nectar, they will lead you to Hi Fi salon after Hi Fi salon in a never ending search for either sublte delicacies like SET or go on complete binges for mega watt high current bipolars. If you take enough of the appropriate chemicals to help ward off this possibility and then apply black light over these inhabited cords, you can actually watch them dance to the music played through them. They're actually very cute.