Many years ago, one of the stores/race car parts chains that I worked for had a store in northern Cali (stockton?), with a unique theft devise. It's name was "Kitty" and it was a 140lb. Mountian Lion! The owner would leave "kitty" in his store at night a few times a month. I think you car would be safe from anybody except "Kitty" if you had that kind of theft devise. Just think, as you walk past an unsuspecting rig, only to hear a growl, that would make you crap your pants, and thats before you even saw it. AND, when you saw it, could you just stand there without messing yourself, or would you just run away, screaming in terror.
Kary