Going to the meetings is like being told you're really fortunate to be visiting the Great Coral Reef off the coast of Australia - when in actuality you're scuba diving in a kiddie pool.
For me, the first domino to be knocked over was continual claim that we had a "spiritual feast" at every meeting. But what I noticed - year after year - was that the meetings were getting dumbed down and the publications seemed to be getting shallower and shallower. Nothing we studied was in depth anymore - and all the talks and publications ping ponged around the Bible using disparate scriptures taken completely out of context that were then forced fit to suite our doctrines.
And then we were told we were "the happiest people" on earth. But when I looked around the hall everyone seemed so miserable. And though I didn't know what spirituality was at the time - I was none the less becoming more and more certain that there was nothing spiritual going on inside the walls of the Kingdom Hall.