When my husband and I were still Witnesses I would correct his grammar. Needless to say he would get very annoyed with me. Yes, I often did it at inappropriate times. I was not always the "submissive wife". LOL Since he was a sought after public speaker I thought I was doing him a favor. I still correct his grammar and pronunciation from time to time, especially to clarify what he says. He often counters with, "you know what I mean!". Well, no, I don't always.
Poor grammar, spelling, and pronunciation have always grated on me. As I get older though I try more to live and let others babble on.
And while I was still a full cult member I would introduce myself as "one of Jehovah's Witnesses".
Reopened Mind