I haven't officially because of family. But I see many times on this board those who do it it and write a letter to send a message. (hoping it gets the elders reading it to think).
Has anybody ever really gone out in style and done it via a comment on the sunday meeting? I can only imagine the reactions if somebody raised their hand for a comment and when they take the microphone they say, after learning (GB coverups, UN, whatever reason), they are dissassociating.
Or a real good one could be if you are giving a talk in the ministry school, then you'd have some more time.
It would be cool if people started doing that, then it starts a trend, each week hearing reports of more and more doing it, first across the country, then the same city, then even in same congregations.