Having guests over

In my house when we have guests over we always cook so much, and have an abundance of food left over for the next few days. This is always great, but I never understood, we can be starving before the guests come but we can't touch our own food. LOL. It's not fair. My mom has this thing where the guests need to be fed before we touch the food because there might not be enough food left for them. There is a whole load of it yet there might not be enough. That has always been hilarious to me. We had guests over on Thursday and we made so much food, and also got some from a restaurant, so i'm picking at it. LOL. My mom comes and starts yelling at me, telling me there ain't going to be enough food for anyone! Haha