The nervous system is comprised of two major subdivisions, the central nervous system (CNS) and the peripheral nervous system (PNS).
Only takes one student to spread the measles that's why every student need to get vaccinated.
2.000-1735=265, aka his discretionary allowance
Their brains are not working right. They don't think logically and they do stupid things. They can get brain damage, they can hut themselves and/or others.