I think we all suffer from guilt at some point in our lives but for the most part I never really regret and I try to always remain positive. Yes I think that those issues are very interesting to play in a character and they're prominent issues in life and I think people can relate to them.
Of all liars the most arrogant are biographers: those who would have us believe having surveyed a few boxes full of letters diaries bank statements and photographs that they can play at the recording angel and tell the whole truth about another human life.