I notice it was grandma saying 'others' have commented on it.
Simple. Tell Gran if they are that worried they can tell you themselves rather than spreading 'gossip' that destroys the 'unity(R)' in the congregation(TM).
Or simply don't go to meetings anymore because you're 'stumbled(TM)' by all the 'harmful gossip(R)'.
Or next meeting go dressed as a pantomime horse.
Regards Paul