If only keeping thieves at bay could be that easy. Remember the '80s and '90s, when car radio theft was all the rage? People etched parts with identifying marks and put "no radio" stickers on their car windows to warn thieves away from a fruitless exercise. Attempting to curb increasingly bold metal thieves, Hydro One started following the lead of frustrated car owners last year, putting up these signs at some of their substations.......