Just because grannies are female and old (usually) doesn’t mean they don’t have a sense of humour. I suspect it’s more a variation between Britain and the good ol USA thing. Firsthand experience here – my Pam is American and care has to be used on the comedy front.
I remember in the 70s, American tourists being shocked at adverts showing women in underwear on the subway walls in London.
Your starter for 10 where is this from, " don’t look Ethel , but it was too late she's already been incensed."
Edit, sorry I should’ve said, not everybody knows that Noel the site owner is American – that’s right isn’t it Noel?
Double edit, sorry I got it wrong Noel isn’t the owner but the owner is American.