At the shelter here, everyone gets chipped before they go home. Mostly, it's done during the spay/neuter surgery, but otherwise we just do it before they leave the building. Yes, the needle is massive and yes we chip 8 week old kittens and puppies, but they always weigh at least 2 pounds whereas some of the little yorks on here are smaller than that! It can be scary cause the needle is so big, but as someone who has chipped many different kinds of animals, it's not as bad as you think. Good job of the vet though to think about the size of your pup before doing it!
__________________  "You become responsible forever for what you have tamed." - Antoine de Saint-Exupery |