Patient: Why would our 3 year old daughter be physically and verbally abusive toward her mother? She bites, kicks, scratches and throws things at mommy and is destructive of both mommy’s things and her own. We have been wondering if there is any truth to the chemical BPA in plastics and the female offspring around age 3. Before she turned 3, she was much more mindful and many commented about how well she behaved. Now I the father dont know what to do.