Thanks everyone! Judy, that's an awesome idea and one we'll definitely follow-up on.

Marrok just discovered the dogs next door and we just discovered our fence isn't high enough for him (nobody got hurt but wow can that dog jump without even needing a flying start). It'll have to be on lead or on cable tie out for now for him.

Also Marrok isn't fixed so I'm waiting for the vet's office to call back to schedule his appointment for ASAP. He's a lovely dog and doesn't need the hormones of an intact male to distract him. I think that's why he just hopped the fence as the pitbull next door is an intact female. Poor Marrok isn't going to know romance in his life but that's best really.