7 days have been passed and I can finally announce the winner.
I really enjoyed reading all of the pranks you did or people did to you, I'm glad I made this contest.
I hope you all enjoyed as much as I did!
But... There's only 1 winner.
The winner is 
It was a really original prank and I enjoyed reading it.
The 5 SBD prize has been sent.
Congratulations and thank you all for participating!