I have a friend whose pet dog killed one of his other pets, is known to growl at children, and to me seems genuinely dangerous. Friend insists that the dog is a

I have a friend whose pet dog killed one of his other pets, is known to growl at children, and to me seems genuinely dangerous. Friend insists that the dog is a good boy and wouldn’t ever hurt anything. Friend insists dog loves children. Friend is an intelligent, gregarious, kind hearted tech worker. He’s also completely delusional and in denial about his dangerous, demonstrably violent pit bull. Friend routinely takes dog off leash in places where that is not permitted. This is the problem.