I dont live on campus but I know exactly what your talking about. I smoke a j every morning b4 i go to school. then when I get about half way to school I realize I left something on (flat iron or something stupid like that) have to turn around and go all the way back home then when I finally do get to class I feel like I reek of weed and that everyone knows Im high. Im not like that normally though, Im usually the one that doesnt care if people know im high.