I read a fascinating post by Treppenwitz in which he notes that his saving 82 people at one point in time is his " emotional 'Get Out Of Jail' card for some of the darkest moments of my life. So in a sense, one might say that they saved me too."
What is your Get Out of Jail card? What good deed have you done which never fails to uplift you, no matter how sad you are? This may or may not coincide with being your proudest moment. Alternatively, what good quality or character trait do you have which enables you to get out of jail?