You should not make fun of people for their interests
Bruce is attending a freshman mixer just before the beginning of fall semester.
Bruce wants to make friends and increase his social status a bit if he can.
Ed stands up for Harold saying he admires anyone with a mind for mathematics.
Bruce joins in with a group of frat boys giving Harold the math nerd a hard time about his major.
Ed becomes friends with Harold who tutors him to a good grade in freshman calculus.
Bruce embarrasses Harold, but is invited to rush the fraternity.