Duke and Champ have never been chipped and both listen very well so I have never bothered. My hubby has even accidently shut them out front after cutting the lawn and when you open the door there they are patiently waiting to come in. They don't leave the property PERIOD without permission even if a cat, another dog, kids, etc go by they just watch. Plus with Duke almost 8 and Champ almost 6, we just haven't done it.

Chopper I did have chipped when he was neutered because the vet did not want to do it while he was awake because of the size of the needle and he is so tiny. He is a momma's boy and I don't think it will ever come into use but I feel better knowing it is in there.