Wear long sleeves or hoodies, maybe wear like a million of those silly band things everyone loves (i don't really like that one but its an option) or put on a bandage and say you accidentally scraped yoursel.
It is and isn't. It leaves scars but make sure you don't cut too deep or you could die. I have passed out a couple times because I cut too deep. Also it's not bad because sometimes you can't take...