In Denmark, cats are earmarked/tatooed when they get spayed/neutered/vaccinated etc. Fister had it done when he was about a year old, and of course, it's done while under anesthesia, so it's not painful for them.

The cat I found in he backyard this summer, was earmarked too, that's why I found the owner. I started the search by ringing my vet to see if he knew the cat - he did (Charlie). So I got the telephone no. to the owners and they could come and get him. He lived 10 min. walk away.

Although I think it's a good idea to microchip pets, I would not have been able to find the owner that fast.

People having pets tatooed for other reasons than identification, I find really stupid!! Vets should not allow it!!