That razor blade trick sounds interesting. What if you get a piece of wood or something with nails or razor blades and put them under a seat cover. A thief won't think of checking the seat, just jump in to do his work and it wont be pretty. But then again, even if you do everything you planned, YOU might get sued, just like those thieves that sued these homeowners and won because THEY cut they're hand on the glass THEY broke to get in
