With that behaviour I would be relentlessly putting the child in the timeout chair and talking to him about what he is doing wrong over and over until he breaks his bad habits. He sounds like he needs anger management. I had a really violent child like that in care in my first year in business and I lasted a couple of months, then terminated. But the parents were not helping, they thought she was perfect. If the parents are discliplining nonstop at home the way you do it at daycare it will work. If the parents don't help then terminate for sure. It won't work.