We briefly visited my grandmother earlier to take her some shopping. She got a big box of broken biscuits out and DH ripped into the box, complained that it was “full of custard creams” and just started throwing them onto the coffee table saying “these can get to fuck” whilst hunting for a specific type of biscuit. It’s not the swearing that got me ( my grandma swears more than I do) but literally chucking unwanted biscuits onto the table?? I told him I thought he was being rude and he says I am over reacting as my grandma wasn’t bothered but she clearly wasn’t happy as she marched into the kitchen to grab a packet of Ringtons instead. Aibu thinking he was rude?? I’d never do that in front of his family. He’s refusing to acknowledge it now and has got a face on over it. I’m so embarrassed.