A buddy of mine kept having problems with his neighbors dogs, they were two big 1/2 doberman 1/2 pitbull mix. Big and mean, he lived in a neighborhood where you put your trash cans out on the curb once a week so the trash man can collect them. Every week these dogs would knock down his cans and make a big mess scavenging for food. Then the garbabge man wouldn't collect the trash because it was spread all over the place. This went on for several weeks, and he told the neighbor several times to secure his dogs. The neighbor didn't do anything about it, so he did..... a lot of rat poisen mixed in hamburger meat, went into his trash can one night... ..... never heard from those dogs again!