How to know when your kid is mad

My first clue that Josh is really mad at me is when he makes up a new name for me. Let me back up. First, if you don't know who the Backyardigans are, they are cartoon characters who have great adventures in their back yards. They know what an imagination is, and they use it. They look like this:

Back: Tasha, Uniqua
Center: Pablo
Front: Austin and Tyrone

So yesterday, Josh is out playing while I was picking up the dog crap. He loves to push the wheel barrow around and make "special deliveries".

It came time for me to head in to make dinner. He says, "Can I make deliveries in the front yard?"

"No, honey. You need to stay in the back yard. Mom's going to make dinner and I need to be able to see you through the windows on this side of the house."

"But mom! I'll just walk from the back, through the driveway, up the front walk and back again. I'll keep doing that so you always know where I am."

"No, I can't see you when you're doing that."

"But mo-oooom! I know! Today is opposite day. So when you say no, you mean yes."

As he stands on the gate and drapes his arm over it to unlatch it.

"Well then, you need to get your opposite butt in this house, because if you take one step outside of that gate, you're done outside."

"PLEASE MOM!"

"Backyard or inside, you pick!"

"MOM!!!"

"I'm sorry. You have to play in the back yard. You are a Backyardigan."

"I'm not a Backyardigan!"

"Sure you are. You're a Backyardigan and you're going to play in the backyard...again..."

"Mom! I'm just going to make some special deliveries in the driveway..."

*I start singing the Backyardigans theme song*
"Your backyard friends, the Backyardigans..."

"STOP IT!"

*still singing*
"We've got the whole wide world in our yard to explore..."

"DON'T!"

"Backyard or inside Josh. Make your choice and let's do it."

Now he is yelling...

"I am so mad at you! You have a new name! You are now 'opposite day ruiner' and THAT is what I'm going to call you!"

At this point, I don't know if I should laugh at the silly name or have a serious talk with him about yelling at his mom.

Instead, I went with this:

"OK Pablo. Get your penguin butt in the house. You are now an Insideagin."

"I am so mad at you!" He huffed as he stomped past me.

He got over it just as soon as I bent over to look at his toe that he stubbed, and ripped one. He's such a boy, laughing at farts and all.