yup hear ya here as well.. Jacob is good 90% of the time but the other 10% boy oh boy.. We are trying to deal with it by talking quietly or just walking away. I will admit yesterday I gave him a smack and it seemed to work for the short term. I felt horrible but I simply had had enough of the whiny yelling screaming no at me and I hadn't even done anything. I do know yelling or smacking doesn't work as it just makes him yell louder but yesterday we also put him to bed and he slept 3 hours and also had a day sleep today and was better..