SCHOOLS ‑- FINANCE ‑- PURPOSES FOR WHICH MONEY MAY BE EXPENDED -- PHYSICAL EXAMINATIONS OF SCHOOL BUS DRIVERS ‑- PHYSICAL EXAMINATIONS OF STUDENTS PARTICIPATING IN PHYSICAL EDUCATION COURSES A school district may lawfully cause physical examinations to be made of its school bus drivers and pay the cost thereof.  Where necessary to protect itself from potential liability, in the discretion of the board of directors, a school district may also cause and pay for physical examinations of students participating in physical education courses.