They have always done it since I've known them particularly fil. My bil is mentally ill and they don't often invite him over when other family are round because of a number of upsetting incidences that have happened in the past.
I hate it! Fil shushes everyone to ensure silence and then makes up stories of what they're doing ie told my bil that his mother was on the toilet when it was actually me and when asked if he was watching a certain programme he said he was watching a rupert dvd because that it what he fancies watching. Actually ds1 was watching it fil doesn't usually watch that sort of thing as far as I know!
Anyway I refuse to play along with it now as I've had enough of the lies and I hate the example it is setting my dc. I refuse to bring them up to tell lies. I will not be shushed and refuse to allow my dc to be. Fil has often got annoyed with me about it and has angrily explained his reasons when he has got off the phone but I hate my dc hearing their grandad telling blatant bare faced lies.
Anyway didn't make a thing of it tonight as we had had a nice meal and didn't want to ruin the evening. However I carried on as usual in front of my dc and didn't whisper etc as he wanted me to. He didn't say anything tonight about it though but it winds me up and make me so angry So aibu?