Are you a parent of a baby who likes biting, hitting or other forms of infant violence? In this episode of The Lab, Daddy Clay and Daddy Brad talk to Hal Runkel, author of the book "Scream Free Parenting" about this issue. How can a dad or mom discipline their child when he or she becomes aggressive? How should siblings or other children react? Is spanking an acceptable punishment for this behavior? Check out the video for answers to these questions and tips on dealing with this problem. What do you do when babies attack? Let us know at DadLabs.com. DadLabs Ep. 727 is brought to you by BabyBjorn. Distributed by Tubemogul.