Naughty or Nice

Some people can't be in pain or inebriated without being mean to others. Their kindness is a fragile facade that shatters under duress. Others aren't like this. They may grow less coherent and be less heedful of courtesies. But their deep-seated kindness remains intact, come what may. I dislike flat umbrella terms like "good" and "evil". But however you might care to define those terms, this seems as good a test as any.