shoe flinging or "shoefiti" is the practice of throwing shoes whose shoelaces have been tied together so that they hang from overheadwires such as power lines or telephone cables. the shoes are tied together by their laces, and the pair is then thrown at the wires as a sort of bolas. this practice plays a widespread, though mysterious, role in adolescent folklore.
soldiers leaving the military often paint a pair of combat boots yellow or orange and toss them over a power line or telephone wire near the barracks or unit to which they were assigned.
this site on the journey to portland sports a rather lengthy collection of shoes. there are either a lot of bullies that have ventured here to display their triumphant steals, or there is one big crack house in the far away distance......