they did once, there was probably like 10 of them so they acted a bit more bold. it was just me and 1 of my dogs. The "leader" ran up and got into with my dog, another tried to jump in and bite him and i kicked it. i noticed they kinda tried to swarm us but they were mostly scared and just jumped around and barked. once I kicked the one dog, it ran off and they all followed. now when they see us, they keep their distance and bark at us.