The usual word of warning, if you are going to put a collar to a cat (or dog) free to roam, make sure that it will break with a force less than the pet's weight

The usual word of warning, if you are going to put a collar to a cat (or dog) free to roam, make sure that it will break with a force less than the pet's weight. https://news.ycombinator.com/item?id=32660081 https://news.ycombinator.com/item?id=32660081