Our two kids (daughter nearly 10 and son 12) are living in a pretty peaceful environment and love to do their things like painting, handicraft, book reading etc. Both put a high value on freedom and do not really like school. They have a strong will. We have some rules regarding homework and other chores and sleeping time - but I would say we are over all rather relaxed.

The issue I liked to better understand is that both (the older one now less) tend to destroy things they have created when they get angry. Especially when we set boundaries, force them to do something or to stop doing something but they try to get their will. At a certain point they are so angry that for example they deliberately hit with the fist and destroy some fragile thing they have created in hours of work. Tonight for instance our daughter didn't want to accept that the day is over and we don't want to play with her. It's bedtime. She insisted, got pretty unfriendly and didn't achieve anything with this. Instead at a certain point she dissapeared (screaming) into her room and we later learned that she cut with scissors a knitted thing which she had created in the past days.

We find this disturbing but have difficulties to understand this behaviour. Our son recently explained he now tries to manage himself by staying away from his valuable things when he is angry.