A few days ago I was leaving work and some dirty looking Native guy walked up to me. I was ready to tell him "No," but he told me a joke and walked away instead. :O
Some panhandler was sitting on the sidewalk once with his legs all spread out so people had to walk around him. He got mad at me when I just stepped over him! He started yelling about how I could afford to give him some change because I had a nice jacket, so I laughed at him.
Another time I was walking down the street with a few friends and some bum walked up to us while holding a bunch of plastic bags. Then one of my friends was like, "Sorry, I already have a bag" and the guy just started staring at us while we walked away.