The ruling on teachers eating from students' food at the school iftar

Question:
He says: Honorable Shaykh, may Allah grant you success. In some schools, every year they designate a day on which the students and teachers gather to break their fast at a single table. The students bring food from their homes. Is it permissible for the teachers to eat from this food?

Answer:
The general ruling is as we have mentioned to you, but I fear that this causes embarrassment for the students, because some of them are poor. It does not mean they would miss out on this; perhaps one who is poor would bring something. Leaving this practice is undoubtedly better.