We're fenced, luckily, it does get on your nerves to have to put it on, and then take it off, over and over and over
We didn't have the fence when we first got Starr and we had to take her harness off, if not then she'd somehow get it in her mouth and chew on it. One time she got stuck like that and was crying something fierce.
I can't leave them on the girls now, Izzy is chewer of ALL things and she's already chewed through 2 harnesses