<human>: Give me a shortened version of the text

OKAY, MY ENGLISH IS A LITTLE BAD AND YOU MAY SEE A FEW POORLY CONSTRUCTED SENTENCES, BUT AS LONG AS YOU CAN UNDERSTAND ME, IT'S OK.

It all started like a normal day in a Spanish school, one of my teachers was sick, so we had an extra hour to do whatever we wanted. Me and my friends decided to go to the library, because they had the macs there and we wanted to browse the innerwebz.

Now the fuck up starts: We thought that downloading lose/lose on a mac and going for a highscore was a GENIUS IDEA (Lose/lose is a game that when you kill an enemy, a random file on your mac is deleted, it can be an icon, a game file or... a sys file)

We runned lose/lose, a warning appears: "This game can fuck up your system badly blah blah blah... Press any key to start"

We start the game and we start killing aliens like there is no tomorrow, we see the files being deleted "wav, png, mp3...", we reach 100 points and the game difficulty increases, a lot more aliens appear and that means more damage, we lost at two-hundred something something, and we turn off the computer before anyone sees what we just did.
 
[-= JUMP TO NEXT DAY =-]

A teacher I've never seen appears in our class saying that someone in our class messed up the computer, and says that he lost DAYS WORTH OF WORK & A MASSIVE AMOUNT OF INFO. It was his mac, no a mac for a student to use.  No one knows who could do that and the entire class is banned from entering the library.
<bot>: Be a dumbass with a lot of luck and delete a MASSIVE AMOUNT OF DATA according to one of my teachers.