ds2 is becoming a little nightmare in a way that ds1 never was. ds1 could be taken anywhere and only ever needed a warning to know to behave. he had his moments but he learned very quickly to behave. ds2 seems to enjoy being naughty. he laughs. he squeals and hits when he is being removed from anything he shouldn't be near. he tantrums. he throws things and pulls hair. ds1 was never like this. what have i done wrong?