In high school, I used to doodle, draw and cover every surface of my school files with images and words, which whilst seemingly random or nonsensical were coded in meaning for something that was going on in my life during those adolescent years. The one recurring image was a "Kilroy was here" image, whose original source I did not know, but one which I thought was amusing enough to reproduce over and over again on files, notebook covers and every so often, school desk surfaces. Armed with a marker, I could have been an artist.