I know you probably felt like a great injustice had been done to you, but next time you might want to stay in your car rather than immediately getting out and acting like you're gonna throw down. Homeless people do not fuck around when they feel they are being threatened/in danger. I'm sorry you had to get a face full of pepper spray, but lets face it dude - you were a complete idiot for thinking that type of confrontation was a good idea.