I am considering allowing my DD's boyfriend to come with us on our trip. He will pay for his own flight and hopper ticket. He will not pay for the room because he will sleep on the floor in a sleeping bag. We will all be on the dining plan and going to expensive places, he will be paying OOP. Can we do this? Can we use our credits and pay OOP for him? Can we share food with him if he is not on the plan? For example, can I give him my appetizer? Afterall, I am entitled to it, does it matter who eats it?