I always hated how a kid could not like you, go to the principal's office, tell them you had some marijuana, they check your backpack and locker and find no marijuana, you still get suspended/expelled. Also some kid corners you and starts throwing punches, you punch back to defend yourself, school says "its not self defense unless you would have died had you not defended yourself" they basically spit in real laws face. In real law if someone shows intent to harm you you can defend yourself even before they try it but in school you have to sit in the fetal position taking a beating and once you're within an inch of your life then you can fight back and probably still get expelled.
School is the most unjust and unconstitutional legal system in the world.