michael.dillon@bt.com wrote:
However, it makes little sense to close your gate to keep the stray dogs out of your yard, if they can just come in via your neighbour's gate and climb over the fences.
It makes a lot of sense. Having closed your gate, and discovered a stray dog in your back yard, you can call the animal control people and they stand a good chance of catching that stray dog.
Like most NANAE ...eerrr...NANOG metaphors this one is broken. We are not talking about stray dogs, were are talking about bad behaviour. If I keep them from dealing that stuff in my parking lot I do several things, in approximate priority order: My clean customers don't have to suffer any effects of the bad guys being on my lot. The bad guys learn it is not a good place to try to deal. The Law knows one place they don't have to worry about.