I currently keep a 6" buck knife next to my seat in my car for those "just in case" situations, i'm thinking it would be more practical to have a can of pepper spray in the same spot instead. Only thing is, my car is black and i live in sacramento, temps inside my car get pretty damn hot. Is there any pepper spray out there that can withstand 200+ degree's? I don't want it to explode in my car. thanks.