Seriously, who spits their gum out on the sidewalk?? You know someone could step in it and then make a sticking noise everytime they take a step. Arrggg so angry right now. Just use a freaking garbage bin! They are everywhere, and if you can't find one immediately, find an old receipt or the gum wrapper, spit it in there, and wait until you find one. People are so rude and inconsiderate of shoes!!