How would you define a Life Changing Event or experience?

I would say it is something that has a major effect on the outcome of your life and what is to happen in the future. Having a baby, moving, changing jobs, graduating from college, etc.How would you define a Life Changing Event or experience?
Man, when it happens you know because you are different after that.How would you define a Life Changing Event or experience?
you must do a number two in your pants.This is the key indacator and without it you have nothing.
Every event in one's life is a life-changing event.For example,if one day you have just learned that dogs can bark,then that is a life changing event.You learn something new thus it will affect you whole view about things.Now you know that dogs can bark.Knowledge is an everyday lesson.You learn everyday,and with each learning,it chages your life,may it be a minor or a major change.

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you can take a pole of this question and what would you say that would be the most out standing answer
...living through a war of little value except monetary returns for a few...
Anything internal or external that caused a significant change in behavior or resources.