Some Approaches to the Question of Chewing Gum Litter

Some Approaches to the Question of Chewing Gum Litter: "Gum can be found everywhere, but a more attentive examination reveals that it reaches maximum density in the vicinity of the most frequented bars: the chewer who is headed there is forced to spit out to free his mouth. As a result, the stranger, not familiar with the city, could find these places following the direction of the more thickly massed gum blobs, in the same way as sharks find their wounded prey by swimming in the direction of increasing concentrations of blood…"