Following a short-lived fad for pet dragons, and the inevitable injuries and attendant property damage, dragon breeders set out to create a docile domestic lap-dragon. Unfortunately, reckless inbreeding for the desireable traits of placid temper and a diet other than raw meat resulted in obese, sedentary dragons, while failing to deliver the dragon-breeder's Holy Grail of a dwarf lap-dragon. In the end, the dream of lap-dragons was abandoned, and dragons found a new niche as garbage disposals, eating virtually every form of organic trash and converting it to high grade fertilizer.