That's not a weird edge case at all. Adding oil to food is one of the most common ways to add calories (intentionally or not). A salad wouldn't even be the har

That's not a weird edge case at all. Adding oil to food is one of the most common ways to add calories (intentionally or not). A salad wouldn't even be the hardest case to detect, since raw vegetables don't soak up as much oil as other kinds of food.