I've uncovered the angers within...
At age 3, my cousin tricked me to kiss another cousin. He then teased me about it. I was embarrassed, ashamed, angry and cried. Embarrassed and angry because I was tricked. Ashamed because I made the other cousin cry. Sad because I was tricked so easily.
As I looked at the young boy, I told him it's all going to be fine. The cousin just wanted to play with him as he found him cute. It's alright. We can play together with them. Taken in that context, I found the Superman vs Clark Kent video below having taken on a new metaphorical meaning.
At age 7, back from a drawing session at the zoo, I was accused by a classmate of going to the drawing session just to get the freebies. I felt misunderstood and angry because the main reason I went was because I liked my classmate's company.
At age 8, or 10, I was angry, and sad again. I got tripped by a total stranger and fell down. It wasn't an accident. I had earlier accidentally tripped him. The trip caused my first and last present, a watch, from my grandfather, to be broken. It no longer worked.
At 13 (around there?), I was angry once more. I had gotten scolded by my father for not powering off the VCR. He did not bother to find out that the reason I did not power it off was due to the fact that I had timed a program to be recorded, and powering off the VCR would cause the timer settings to be lost.