Trick or Treat? How about a scream?

So, I'm sitting here with my laptop, handing out pretzels to the trick-or-treaters while my girls are off with their friends, and this little boy of about 6 years old walks up with his daddy in tow. I recognize him from about 15 minutes earlier because he's wearing a blue Power Rangers (or some such) costume with big white puffy diamonds on the arms and vinyl boots. The first time he was here he was very polite and thanked me appropriately.

I had just finished talking to another couple of kids when I looked over at him walking across the lawn again towards me. He immediately threw down his bucket and yelled at me "Why did you say 'no'!!!"

His dad looked at him and tried to assure him that I didn't say anything to him. I said "I didn't say 'no' to you. Why would I say 'no' to you?"

His response was to scream at me louder, like an angry scream "WHY! WHY! WHY!" He was turning red in the face and his dad was trying to calm him down without making too big a deal of it. Finally, the kids says "I'm not going trick-or-treating anymore! I'm just going to sit right here!" And with that, he plopped himself right down in the grass.

His dad and I looked at each other kind of perplexed, so I said "You're welcome sit here if you like. Do you want me to get you a chair?" He just made a pouty face and sat there, so I said "You know, I saw someone earlier in the same costume as yours and I thought it was very cool."

"One just like mine?" he asked.

"Yes, just like it. I remember 'cause I wished I had one like it."

He immediately smiled a huge smile and said very excitedly, "I was here earlier! That was me!"

"I thought that was you" I said. After that he was talking to his dad and me in the sweetest voice, just as happy as can be.

Of course, I let him have more pretzels.