All calories consumed on vacation don't count. When you eat with someone else, calories don't count if you don't eat more than they do. The calories consumed by eating off of someone else's plate don't count. If you fatten up everyone else around you, then you look thinner. Things licked off knives and spoons have no calories if you are in the process of preparing something.
Examples are peanut butter on a knife making a sandwich and ice cream on a spoon making a sundae.
Late-night snacks have no calories if eaten directly from the refrigerator . The refrigerator light is not strong enough for the calories to see their way into the calorie counter. Foods that have the same color have the same number of calories. Foods that are frozen have no calories because calories are units of heat. Examples are ice cream, frozen pies, popsicles, etc.