Cassie and I used to walk over three miles back and forth to work, most days every week, even through the winter. We walked residential streets and at least a dozen times a year a loose dog would approach us. I tried to avoid all encounters knowing if Cassie got into a fight, she wouldn’t stop. So as a dog approached I’d pull Cassie close to me and yell at the dog in a loud, low voice to go home, to go away, while waving my arms. This worked for almost every dog, who realized they’d have to take on me as well as my dog. Never raise your pitch when yelling at a dog – this can cause more excitement in dogs.