I went out and noticed my two boys had wandered into the neighbors yard. our neighbor wouldn't mind, but they have a huge lab, and they were on his side of the electric fence. i called "Boys!" and they came running!! when they start running real fast, they flap their wings, and they did. they ran full speed right to me. so i made them a special treat. its new so they are a little afraid of it, but when i went inside to make it, they followed me into the garage and waited for me to come back out! they then were following me everywhere! they are so sweet. i'm so glad they came when i called though! right after i came out with their treat about 2 minutes after, the lab was out and running around.