I was at a friend's house for dinner on Sat. She had invited another couple who, on arrival, said that they'd been at a nephew's First Communion that afternoon and had come straight on from there.
Then, when we sat down for dinner they both announced that they'd spent the afternoon 'stuffing' themselves with hot dogs, cakes etc at the Communion party and would just have a tiny portion of dinner and no pudding. My friend was quite annoyed when I went out to the kitchen to help her serve up and said she'd spent ages shopping and cooking the meal and now hardly any of it would be eaten. I totally sympathised as I've had that happen to me once or twice and it's both disappointing and annoying when guests make you feel all your effort has gone to waste.
AIBU to think it's really rude to accept a dinner invitation and then arrive too full to eat?