Twisterdog what you say makes complete sense, that is exactly how micro-chipping dogs in NZ came about, because of a irresponsible pet owner.

A young girl was attacked viciously by a dog, I won't go into long drawn out details, but this is what sparked the idea to micro-chip dogs and have it made law, so owners can be tracked down easily , like in this case.

I mean something good , came out of something bad, but it is a pity it has to even be like that.