I feel really sorry that this is happening, Bagpuss.
It makes me very sad to see. It's not fair on people like you, you shouldn't have to put up with it.
I don't know what can be done but hopefully you will get a response from someone who can advise.

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Old aunts used to come up to me at weddings, poking me in the ribs, cackling and telling me
'You'll be next.' They stopped when I started doing the same to them at funerals.