This is a matter of perception. Evil inflicted for no justifiable reason is in itself evil. However, murder is evil yet in certain circumstances, one can be forced to act in an evil manner, without choice, especially when protecting yourself or a loved one
A. Short answer
http://www.dictionary.com/browse/objective-test
His hands are too cold, and they feel to numb to start the fire.
You can help them by sticking up for them or saying something to the person whos bullying. You can aslo tell an adult or someone whos close or call 911 if it's a really bad situation.
Hoped I helped!