I have a student who comes to my classroom and wants to eat lunch with me every day. She comes in and asks to have a "bite" of my sandwich or for me to split my food with her. I started locking the door, but she knows I am in there and will continue to knock until I open the door. She has friends to eat with, but I think she just does not like the cafeteria food and wants my lunch instead. She does not come in and talk to me either; she just sits on her phone and asks me to walk with her to a restaurant close to the school and buy her food. What do I do with this student? Do I continue to give her my food, or do I put my foot down?