For me it was when I was about twelve years old and my best friends Dad was disfellowshipped from the congregation.
I could not understand how a God of love would treat someone so coldly.
I used to think what if that was the way my parents would treat me if i had done something wrong, that would be so hard and cruel.
As I got older another thing that bothered me was the beard issue. It may sound pretty trivial however the Society has always refused to make a good arguement as to why they would give you the old cold shoulder if you were to grow one.
Two more items; First I could not understand why all the congregations and all the assemblys would give income reports
and the Society never did.
Last but not least, why dosen't the Society help with widows,orphans and homeless people.
What were yours?