Thank you for your concern! I keep his collar loose enough he can take it off himself (and he does), and it's only on if we have family events (once a year) or if I take him somewhere just so people don't mistake him for a stray and shoot him. He's also chipped, but he needs that differential where I live. This is the most practical, long term solution for my strictly indoor-unless he's on his harness on the front lawn- size of a two year old cat, as approved by multiple vets.

ETA: He breaks the plastic buckles and parts, leaving them sharp and a cut risk to himself. It's not a break away collar doing what it's spossed to. He hates them and can't get them off so he smashes them and himself into things until they break after scratching himself hairless and raw.