these laws were essential to the security of my body

"To survive the neighborhoods and shield my body, I learned another language consisting of a basic complement of head nods and handshakes. I memorized a list of prohibited blocks. I learned the smell and feel of fighting weather. And I learned that "Shorty, can I see your bike?" was never a sincere question, and "Yo, you was messing with my cousin" was neither an earnest accusation nor a misunderstanding of the facts. These were the summonses that you answered with your left foot forward, your right foot back, your hands guarding your face, one slightly lower than the other, cocked like a hammer. Or they were answered by breaking out, ducking through alleys, cutting through backyards, then bounding through the door past your kid brother into your bedroom, pulling the tool out of your lambskin or from under your mattress or out of your Adidas shoebox, then calling up your own cousins (who really aren't) and returning to that same block, on that same day, and to that same crew, hollering out, "Yeah nigger, what's up now?" I recall learning these laws clearer than I recall learning my colors and shapes, because these laws were essential to the security of my body."  

- Ta-Nehisi Coates, Between the World and Me, 2015

(Red Country reading list)