Hi,Please help,one of my 3 year old twin boys is biting and beating the other one and throwing things always.the other one will not hurt him back.this will make me go mad and end up with beating him.couldnt handle it gently when seeing the other one crying out.And also he wants everything first and big...he doesn't give space to the other one..Please help me how to deal it gently???I really wanted to be gentle with them.this is making me loosing my cool everyday.feeling too guilt after that.