A while back there was a local kerfuffle because some vandal was slashing the tires of cars which came to visit a local park at the top of a bluff. The vandal would only slash 3/4 tires and it apparently made getting insurance to cover it hell because insurance would cover 4 damaged tires but not only 3. Also 3 tires is more likely to be less than/about the insurance deductible thereby making it more costly to the owner. So the vandal was really causing maximum possible chaos by slashing only 3 tires