My neighbors on both sides have dogs that occasionally come over to the fence line and start barking if they hear us in the backyard. As soon as my boys hear this, they react by jamming over to the fence line and just unlease some intense bark sessions. I would like to have more control over these situations, at times if I have nothing to motivate them to leave the fence, they will just ignore me and continue to bark. From your experience, any suggestions on gaining control during these situations, please comment...