Dog on roof barking at me. Chivay, Peru.

The dogs of South America tend to be way less aggressive than dogs in the states. Many dog owners in the states specifically raise their dogs to be aggressive, either to protect their homes and/or property, or they want to have a tough dog as a symbol of power. Here, most of the dogs run around the streets freely. They interact with well-known and foreign people all day long. If a dog becomes aggressive and starts biting people, someone takes the initiative to shoot it or kill it in some way. That dog no longer breeds and the aggressive genes are bread out of the populace. My theory as to why SA dogs are more mellow.