Taxes are weird, and I guess you wouldn't know this if you didn't deal with purchasing or selling. Like, why would a librarian know?

Another weird thing that I learned as a student is that Universities and schools can't charge their students meal taxes. If you go to one of the HUDS cafeterias and look like a student, they'll ask if you are. Say yes, you pay no meal tax.

https://www.mass.gov/directive/directive-10-6-exemption-for-student-meals-under-gl-c-64h-s-6cc