My most recent post reminded me of a little incident from my past as a teacher of English.
I taught two lovely girls in one class in a decent, small-town comprehensive. Both were 16, both were bright and hard-working, and both had put in enough work to get a solid A grade in their English GCSE coursework. All they needed to do was to sit a simple two-hour exam to complete the award. They would have walked it. But a week before the exam, they disappeared from school, never to return. The exam was never taken, and they never got the qualification that might have helped to lead them into an interesting and fulfilling career.
I later learned that, as Jehovah's Witnesses, they had been taken out of school by their families to devote more time to their real 'work', that of travelling the area and preaching the Word to the unbelievers.
Somehow, after that, I could never see JWs as anything other than selfish obsessives with a massively-distorted view of human potential.