Do you remember the first time you felt ashamed?

The first time I remember is when I was 3 or 4, and we were living in base housing in Germany. It was around Christmas time, and I'd gone outside with my older brother. One of the fathers who lived in the building had built an igloo, and there was light shining from inside of it.

I was fascinated and delighted, and started crawling into it. The man angrily yelled at me, saying I wasn't invited to come in and how wrong it was of me to, and to get out.