Yes, By my oldest son. It started when I split up with his sd. He would throw my then 4m old out of his swing, off my bed and punch him and everything. Now hes 4yrs old he still does it but I nipped it in the bud quickly
Our Daughter had a little problem with another Girl this past School Year. But, we spoke to the Principal and she handled it well. Our Daughter was never bothered again.