I have namechanged, I can't stop thinking about this.
I have no children. I was at a friend's yesterday and some other friends joined us for lunch with their DS who is about 8 and their DD who I think is about 6. There was a salad, cold meats, buffet style and the father of the children gave each of the children a lot of food and the DD wasn't eating a lot of it, especially the salad. After a bit of getting upset from the DD, the father hoved her head back and forced a bit of tomato in her mouth. She was understandably very distressed and then vomited 
Neither the mother or the father seemed worried, they just kept saying things like "she won't eat a thing, really fussy eater, oh she eats chocolate all right." The DD's brother kept laughing at her and kept parroting his parents, saying "She doesn't eat red or green stuff" and calling her the Michelin man and other derogatory comments. The DD wasn't fat, not a skinny kid but not a fat one either.
This isn't normal family behaviour, or is it?