When, Where, How and Why did you become Atheist?

[AFTT47]

I was indoctrinated to Christianity as was most Americans but even at 5 years-old, I didn't accept the Genesis story. In fact, I remember being confused as to what the point of this story was as it obviously wasn't true. I accepted the God thing though until I was somewhere around 12 when it just hit me that it wasn't any different from Santa Clause, the Easter Bunny or the Tooth Fairy. The whole thing just never resonated with me.