My friends call me DarkMark. Is it it my twisted sense of humor? Is there something inherently sinister about me that I haven't caught on to? Is it my knack for cheating death? Is it just a cool nickname? I don't know, but I do often hear, after suppressed chuckles, "Oh, that's why they call you DarkMark!"
However, I'm often too aloof to realize why it is being said. This does not mean you don't have my attention. It usually means you've made me so comfortable my true nature is spilling out without being filtered.