Spitting in Korea

I have now been living in Korea for 2 months...I can't believe how fast the time is flying by. Many things that were once shocking when I first arrived I have now grown accustomed to and sometimes don't even notice them. The one thing though that still does bother me and I don't know if I'll ever get used to is how the men here spit on the sidewalk. I had read about this habit before I moved here but had no idea just how obscene it really was until I experienced it firsthand. I don't think "spitting" is the right word-- I would say LOUDLY and offensively coughing up at least one lung and leaving it on the sidewalk for all to see would sum it up more appropriately. I try not to listen but damn it, it's unavoidable!