Correcting OTHER'S Speech

We have made progress w/Gage correcting people's speech, he does it in private now! At a family gathering last week, he ran over and jumped in my lap and whispered that another family member made a mistake. I said "that's okay, what was it?" and he said,"she said mu instead of much." I had to throw in a "good listening Gage." Now here in the deep South, people do at times slack on the word endings. We don't necessarily pronounce the ends of words as clearly as we do the beginnings, I catch myself at times leaving the endings of words off as well.example(yella/yellow) and I think sometimes what I notice people doing, is maybe finishing their words but unvoiced...guess it's just dialect but I do have to say, having two deaf children has really improved my speech! Guess I had to improve or Gage would correct me...wouldn't that be something if a boy born deaf became an AVT!