People cut themselves, this is a fact. There is, however, a line. People actual problems, they do it for real. It's not so other people with stare or think they're cool, it's because this is their way of doing things.
There are also emo cutters. Kids that "cut themselves" with bits of plastic or a butter knife. These little bastards wouldn't dare touch a razor blade because they actually cut. Kids (they are kids) that "cut" for attention, for respect or because some gay emo song made them cry.
Look out for emo cuts. They're tiny red lines or raised bits of red skin. Give the fuckers some real cuts to cry about.
Emo Kid #1: "OMG, im lyk so depressed. im gona scratch my arm with a safety pin"