I need to consult the "raising a boy" books

I've mentioned before how Cam has been strangely weepy lately. It's exhausting because I don't know the right way to put a stop to it. But things got out of hand this evening. I went to pick him up from school and he immediately started whining about how he wanted to stay at school and it wasn't fair. Then he wouldn't help clean up. Then he got disrespectful to me and the teacher. I wasn't happy. So he cried and cried as we got into the car and most of the way home. Then he whined that he wanted to listen to music. I just quietly drove home because I didn't want to get mad while I drove. No music. As I pulled into the garage he says: "I didn't get to listen to High School Musical.... d****it!"

He used a bad word. It took him 5 years, one month and one day to use a bad word and I'm so sad.

I stopped the car, turned around and looked at him with my death-ray eyes. He started screaming. All out screaming. He started yelling "I didn't know!" "I didn't know!" I threatened the end of favorite toys if he ever used a word like that again and sent him to his room.

Things didn't get better. Dinner was miserable and he'll be eating his broccoli at breakfast tomorrow morning. He ended up going to bed straight from the whiny dinner table to bed. It was all kicking and screaming and disrespect. I won't have it.

I think I need to pull the books I started reading a couple of years ago and really read them. I feel like we're at a turning point developmentally and in how I react to his outbursts. I don't want to put an end to Cam's emotional displays, I just want them to appear for good reason.