Ok. Seriously, who gives a crap about ths rule? oh look, scenario 1, just finished PE, omg i'm so tired... i have an idea, lets take the lift! No we can't cos we're not allowed to! You're right! i shall not take the lift as not taking it would dehydrate me and cause me to faint and roll down the stairs and let me learn a valuable lesson of life!

ok that was pretty dumb but still.

2) Teacher who just reads from worksheets and not teach the class what they really NEEd to learn.

please. i can do that too. the school can hire me too and pay me a few 5 thousand bucks for doing just that. please. if you're gonna read from a script, go join the theatre district. 

3) Teacher who's just being a dick.

I only know of one teacher who's been a real dick, like, uses vulgarities and only thinks of wanting to go home and not stay in school. Getalife dude... he's also been late for one whole period... dumbbbbb.

Done.