If ever there was an influential dog, it has to be "Sido." Sido was eleven years old when she was surrendered to the San Francisco SPCA in 1979. In most animal shelters at that time, dogs over five years old didn't stand a chance. Even worse, her owner had just committed suicide and it was written in her will that Sido should also die. Richard Avanzino refused to kill her, and a lawsuit followed that put Avanzino in personal jeopardy. Most people even today would simply