My friend thought he was a crackhead, but I honestly think it was mental illness. The guy was in his 50's it looked like, and he was functional enough to have a car that he was driving and wasn't dressed like a bum or anything. But, my buddy coughed while we were walking through a parking lot and he was walking the opposite of us, and he just lost his shit and started fake coughing and screaming at my friend and calling us slurs and threatening us. People are just fucking weird.