Now that I'm working with my very frail in-laws a lot, it's sort of like feeding toddlers, and yet the nutritional needs are so different. They forget to do simple and basic things like drinking water, for example, though maybe that's a choice too, since they sometimes don't get the body's signals that it needs to delete the excess and they're not able to sprint down the hall to the bathroom anymore. Still, I usually enter the house and greet them now by filling a glass of water for each.