He’s the boss, telling the dogs where to sniff and whapping their faces when they screw up.

Are you sure that the previous owner of the collar wasn’t eaten by the current owner, which given the nature of the role associated with the collar, seems appropriate.

Looks like he takes it seriously though

I’d be more afraid of an aggressive cat over an aggressive dog. The latter are usually easier to trick and can hopefully be herded to somewhere where they can be trapped. Cats however…

My hero

Does he “walk” or is he one of those draggy ones?