How to get revenge? Good ideas please?

Okay so there's a little b*** at my school. He got into my iPhone, somehow got into restrictions (I think my little sister told him) and he erased my iPhone. I swear to god I feel like stabbing him right now. Luckily, I can back it up, but I still want to make him pay. Are there any good ideas for revenge?

Just get over it and move on? 'Revenge' just tells the kid that he made you mad which means he wins!
Be the bigger person and leave it there, he'll be gutted when he gets no reaction and it saves you getting in trouble for some silly act of 'revenge'.

Beat the *** out of him. Punch downward on his nose and it will break. Then while he is crying on the ground break all of his fingers so he can't touch your phone again. Then pee in his backpack. Spill milk on his head at lunch.

Find out where he lives and track him down and leave a severed horse head at his doorstep like in the Saprano's episode, wait for his reaction the next day and see if he makes sure it was you. After that start leaving packets of horse blood in his locker, this for sure will make it so he knows not to mess with you.