Need to stand up for yourself abit mate, you must be seen as abit of a joke at your school if someone had the balls to do that It's only a scratch, but thats spiteful as f**k and they probly think they've got away with it... If you find out who it is wait till there infront of their mates or infront of alot of people and smack them as hard as you can on the chin (don't say anything just walk up to them and crack them as hard as you can, aim to go through their jaw to the back of their neck) and they will drop to the floor like a sack of shit, maybe get one of your mates to video it on their phones and have it sent round the whole school. Bit of revenge mate, they won't do it again and I doubt you'll get any more stick off anyone And they'll probly get the piss ripped out of them for the rest of their time at your school. If you don't stand up for yourself it's gonna get worse lad. Bike of mine got robbed by some chavs when I was in year 8, knew who it was and I got the bike back in a complete state and I did f**k all Don't make the same mistake as me because I have regretted that for years. All it takes at school is to drop one of the lads who everyone thinks is hard and your sorted till you leave