Looking for some advice/recommendations. Going away for 3 weeks and having to leave my dog in someone else's hands. He's very anxious around other animals and this comes out as aggression. Almost impossible to get him to wear a muzzle too. He's fine being handled by people, although can be a nip if he's outside and a stranger approaches. I've read some kennels can keep anxious dogs separate/let them out serpately, I wonder if any in Clydebank or Glasgow do this? Has anyone had experience with kennels or dog sitters and dogs like that?