Why did I get screamed at

Man I was down at Lucky Go getting the wrong printer cable for Molly and when I was out in the parking lot with my cheap little plastic bag this forty five year-old gutty dude with real flat wet combed hair got out of his car (a pretty bad old Nissan that a man his age should be beyond) and started over at me. He kept patting down his hair and running his thumbs around the inside of his waistband, you know, and when he got like ten feet from me he had a pretty good lather on, just screaming that I was a son of a bitch. It gave me the feeling that I hadn't noticed him earlier when he drove by and he thought I had flipped him off (I had not just errantly done any flipping off that morning so that seems unlikely). Maybe he reasoned me for another dude who had done him over with some cash or parts. I just started to back away because I didn't have much anger at the time and when he advanced I actually ran fifteen feet. When I saw that he didn't chase after me I started to walk again. It was a pretty basic "weird scene," like might make sense if you were looking at two fairly sophisticated beetles in a terrarium but man was this guy coming off the whiskey or something. Or is it whisky? No wonder people who drink whiskey are always so mad, they're like WHAT THE HELL AM I DRINKING WHISKY OR WHISKEY and that just makes them drink more. This guy was like that, a man who would drink to excess because his beverage had an outmoded spelling distinction, and then yell at people by the cheap electrical parts store. That is the kind of guy who usually notices me in public.