Life Changing Experiences

From my experiences over the years I have found that really people do not change unless they have a life changing experience. And I mean at their core. Especially the older they get. Its like when your born you are this molten steel that can be molded and shaped but the older you get more rigid and less likely to significantly change. This is one of the reasons that I value core values so much in my employees/partners. Trust, loyalty, passion, confidence, work ethic are all things I cant change in a person. But there are experiences that can change people. Military I have friends who went into the military a complete wreck and came out with incredible character values. I always have a soft spot for the men and women who server our countries and fight for the freedoms we enjoy so casually. I will always thank people in the military for their service when I see them in public. Religious I know many people who have had a religious experience of some sort which significantly changed them as a person. Near Death My father went under and was resuscitated many times about 12 years ago until he received a heart transplant. This near death experience has absolutely changed the way my father views life in general. Curious what other ways do you think can change a persons core?