My dogs don't wear collars. I figure if somebody is ABLE to get them out of my yard a collar isn't going to help me any. They've gotten out of the back gate before, and run around to the front door and sat there and barked and carried on until I let them in. My dogs are supremely spoiled and extremely dependent on me. I've got zero fear of either of them getting out and taking off. They are microchipped and if we go somewhere I'll sometimes put a collar on because they're pretty but my dogs have both gotten their jaws stuck on each others collars and when you hear them screaming like that it makes you think twice about leaving them on while they're alone at home. I've also got an internet friend who's dog hung itself in it's crate and died.

I'm more paranoid about what could happen leaving them on that them getting lost and not having one. It's just one of those things you need to decide what's the bigger risk for them?