Even if I - occasionally - can't find the key to lock it, I'm sure it still deters would be car thieves
I remember my old one getting really awkward to lock/unlock so most of the time it was just in situ but not actually locked!!
Neighbourhood watch here are currently recommending them. Along with a cage around the catalytic convertor and locking screws on the numberplate.
Giving my pots a bit of a boost after the winter
Desperately sad story of the assisted suicide of a grieving mother
