You're over visiting someone's house. It is not during any particular meal-time. The host asks you if you'd like anything to eat or drink and you tell them "no, thank you, I've eaten". A few minutes later, they come out of the kitchen with a pre-packaged ice cream cookie that they have opened and cut into slices (relevant only because the item will melt quickly and now can't be put back) and hand it to you on a plate. You don't even like this food item and you really aren't hungry at all.