I once booby trap my 1960 BUICK LESABRE CONVERTIBLE, someone kept opening my hood & cutting my spark plug cables, So I got a thin piece of ply-wood & nailed some 2 inch nails, park the BUICK about 4 feet from the walls of my house, a couple of days later I found a BLOOD TRAIL, & I never again had anymore problems with anybody messing with my cat, BUT the wife wanted to kick my behind, cause see said we could have gotten S U E