It's not so much about giftedness, but I felt like the knowledgeable parents here can offer me some good advices.

Children like to imitate, but DS15mo takes imitation to a new level.

Earlier this week, DS pushed the air purifier down on the floor. I put him in his portable crib for a timeout for that. Yesterday, he was trying to push the air purifier down again. After I told him no, he continued to push the air purifier down. I then threatened him with a timeout. He stopped right the way. Little did I know, he was going to play the same trick on me later on.

Today, DS threw my calcuator on the ground while playing with it, so I took the calculator away. He cried and screamed about it to no avail, so he decided to "treaten" me. He hit his head and sucked on his thumb, which are two bad habits he quits a while ago. I cannot believe he was doing those things to demand the calculator back. He did it again after I told him he couldn't watch TV.

I would appreciate any book suggestions about how to discipline young children.