Martin Dearlove posted the following things to remember when dealing with challenging behavior which I totally agree with:
1. Don’t take it personally. It’s not about you.
2. The behaviors are challenging. The child is not.
3. De-escalating first. Problem solving later.
4. Sometimes we might not see it, but there’s always a reason.
5. Have empathy. Just imagine what the child is going through.
Source: National Centre Youth Issues