Describe A Homeless Person

Back when I was a college student, I used to go out every night for walk in the city. I used to joke around with my roommate about the thieves and the murderers being nice at night. On one of these late night strolls, I saw a man walking down the street. He looked as if he was doing the waltz or something of the sort. I decided to cross the street, he was creeping me out. As I crossed the street, he stopped walking/waltzing and starting to stare at me. That was the first time I was able to see his face. His eyes were wide open, and he had a hideous grin. His yellow, terrifying teeth were what traumatized me the most. I turned away quickly, in attempt to hide my fear. I continued walking my path. Out of curiosity, I decided to turn around. I saw him, still smiling and his eyes staring into my soul. I stopped dead in my tracks as I realized he was walking towards me, in that same manner.
He was near six-foot tall, scrawny, and he appeared to be homeless. He was a wearing a plain, black sweatshirt with the hoodie drawn. After the eternity that he stood there, he turned around and began to walk away. Amazed, yet terrified, I turned around and began to walk away.
I heard the sound of heavy footsteps approaching me fast. I didn’t have to turn around to know what it was, that smiling man. I began to run, faster than I knew I could. I turned around and he was gaining on me. As I started to run out of breath, I saw a parked car with the windows down. I knew that the keys might not be in, but I didn’t have any other