@Yoda mom We've tried the big crate, scheduled potty breaks, essentially everything short of tethering him to us when we're home. We've done your recommendations for getting used to the cats, and although he'll stop when we use the 'leave it' command, as soon as they run, he's right back to chasing and grabbing them to play.
The person he'll be boarding with is a close friend and I'm welcome to come visit whenever I'd like. She's been doing in home training with us since he came home, he just needs a place with more consistency. He's so incredibly stubborn, he'll literally just stare at us while he stands and pees.
The person he'll be boarding with is a close friend and I'm welcome to come visit whenever I'd like. She's been doing in home training with us since he came home, he just needs a place with more consistency. He's so incredibly stubborn, he'll literally just stare at us while he stands and pees.