6 years ago, sitting in the drive-thru with my ex up in Englewood. Homeboy comes swaggering up to the counter, holding his crotch, evidently there to see one of the girls working. Makes eye contact with me and does the whole arms-spread-out "you lookin' at me?" pose. I don't have the slightest idea why. Obviously he was threatened into an extreme state by the nerdy white kids buying ice cream sundaes. We just ignored him and continued paying for our meal. As I'm beginning to pull forward, Tupac decides to walk out in front of my Jeep and start for the passenger side, cussing and yapping like a 5 foot terrier. I maintained eye contact, pulled out my para .45, and rested my hand holding it on the steering wheel. He veered off course, acted like he was walking in a different direction all along, and stood by the side of the building until we left.
Of course, my very liberal ex had some admonishment about how situations like that don't happen if you "put enough positive energy out into the universe". There are good reasons why she's an ex. :-)