Ok i think the only thing i must explain here is the joke about the open can. Its a joke that Nii told me once, so beware lawl.
A Physic teacher and a Math teacher once made a bet, who would survive longer in an empty room with just one can of beans. They ask the other teachers to be the judges and watch over the 2 closed rooms.
After 2 weeks, they decide to open the doors. They open up the door of the Physic teacher and he hops out happily, since he has built himself a leverage and could open the Can with that. Then they open the door of the Math teacher. As they open the door, a foul smell already greets them, and in the middle of the room the Mat h teacher lays, he probably didnt last long. The Can was untouched by his side. As the other teachers step into the room, they notice there are mathematic formulas writen all over the wall. The Physics teacher tries to make out the beginning of the formula and as he finds it, he sees the words that start the formula, saying "Lets pretend, the can was open"
For all those that dont get it, math is mostly based on pretending something was the way it actually isnt, but getting to a solution that is correct somehow anyway ): (in this example, its not the chase lawl)

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