More details: Fairly normal-looking dude walked up next to me and kept pace for a couple minutes, threatening me and calling me "faggot" (which seemed odd, since I was walking with my girlfriend at the time). I didn't see an actual gun so I figured that the safest course of action was to simply ignore him until he presented more of a threat or walked away. I guess I bored him so he walked away.

The calm took some willpower.