You are the kind of dog you have. I’m a big fan of Golden Retrievers, the love dogs. I’m also partial to Labradors and Jack Russells. It follows that any guy who owns a Cane Corso Mastif that’s been trained to kill is some kind of belligerent macho ayehole. If I had any say in the matter of this four-year-old Brooklyn boy who was killed Friday by a Mastif, the boyfriend who owned this killer dog would do serious time.