As the subtle aroma of stagnant piss burns away the protective layer of mucous in your nostrils,  the ammonia buzz sends a bitter-sweet tear  to your eye; for  you are looking squarely at the communal filth of a society in decay.  But, if you are willing to choke back your gag reflex for a few moments, you'll be able to see the vile lengths human beings are willing to go in the name of self expression.  Mind you, these items are but a few of the thousands of examples smeared layer on top of disgusting layer all over the surfaces of the walls of the alley.  It's eerily reminiscent of the burial catacombs beneath the city streets of Paris.  Only instead of skulls neatly stacked by caring monks, we have the remains of the families Doublemint, Big Red, and Bubble Yum smeared on a nasty wall by the grime encrusted thumbs of countless pasty faced, dreadlocked boys and girls balancing double mocha javas on their way to daddy's Hummer 2.  But, I digress....