We have a bbq coming up and one of the guests is known for overfilling her plate and only eating a small amount of it. She does it every single time. I don’t feel comfortable saying anything as it might cause friction with the relationship dynamics but seeing an obscene amount of food going into the bin really pisses me off it’s like she’s throwing my money away. On top of that she comes over with empty hands, not that we need anything but I wouldn’t go to someone’s house and not take a bottle of wine with me specially when she drinks a lot. Would it be wrong if I served her instead of letting her serve herself? Not inviting her isn’t an option unfortunately.