This guy doesn't hesitate to fight a pit bull!

An off-leash pit bull was let loose in a California dog park. The dog seemed aggressive, and a man on the scene didn't appreciate it. He intervened directly, obviously concerned for the safety of the other dogs around him. The person responsible for the pit bull is said to be a nanny of sorts, not the owner. We see the man raise his voice, then physically confront the dog. He declares that no pit bull should be loose in a public space. The scene was filmed and shared online.