you're his best friend..and he lives with you for a while because he just got released from prison after 10 years..you notice that he always quite in his room..he always stay up late also you notice that he can't sleep..on the morning you can see him sitting on his bed looking tired..really tired..so you went to him and ask what's wrong "after all these years..im just being a bad person..how can i forgive myself" he said in low voice and start sobbing