My concern is that the overterritorial Chihuahua comes busting out of a door while I am walking my 100-pound Labrador and then gets a hold of his leg. He has a

My concern is that the overterritorial Chihuahua comes busting out of a door while I am walking my 100-pound Labrador and then gets a hold of his leg. He has a peaceful demeanor, but there are limits. Or the unsocialized creature gets a hold of my ankle while walking to the park without dog. There's nothing good that can come out of this. The likely outcome is a dead small dog and a vet/physician bill. I'm not risking a hand injury over someone else's animal, hand injuries can be disabling.