Watch: An excited puppy knocks his human onto his back

You know your pup is turning into a teenager when they can no longer jump into your lap without a mishap. In this case, caught on security camera, an excited Labrador was doing what it does best — retrieving — when she leaped into her human's lap. Although a normal part of their playtime routine, this time the jump was too much, knocking the man and his chair backwards, down to the ground. He's a good sport though, laughing as he tells his son he hit his head. Time to ditch the chair when playing fetch!