Projectile Spit

Some hobo just spat at me on the streets. I was just walking on front street to get some lunch, and some hobo sitting on the ground about five feet from where I was walking maliciously threw profanities and spat at me. Some of it got on me .... I was livid for a few moments, but I'm honestly not sure what to do with a delusional, angry, spewing hobo.