I remember moments in my life, I would run into people that I knew casually. They knew I was a witness or at the time was extremely familiar with the organisation ( Around The Truth ).
There was one who asked of me, "Are you still going to the Hall? " , I would say yes, then ask of them, "Have you ever been to the Kingdom Hall?", and they would say yes, along with "I know about the truth". Then I'd wonder to myself, if they have knowledge of the truth, especially with the knowing of "Catch Phrases" and the like, why is it that they're not serving or won't serve Jehovah? Is there something that they know that I don't? Why would anyone with a reasonably correct knowledge of Jehovah's organisation choose not to serve?
The person I came across didn't elaborate as to the knowledge that she had but it, somehow, seemed clear that she was not happy about whatever her experience was.