In theory both my Persoicacity and Olivia are indoor only cats but both have 'door dashing' moments. Both are microchipped and it gives me peace of mind. I had Cassy chipped when he was neutured, and Livvy on her first checkup after she came to live with us.

Cassy needed an x-ray once, and I was absurdly pleased to see the little chip between his shoulder blades, at least after I quite freaking out and the vet explained it! I can't feel it on either fur-kids.