This is bizarre. I just remembered this.
Walking home from elementary school - I was in 1st to 3rd grade? I would step on EVERY. SINGLE. LINE. AND CRACK. in the sidewalks.
"Step on a crack, break your father's back. Step on a line, break your mother's spine"
I used to step-hop from line to crack and repeat, over and over and over, the rhyme above and also - "please let them die in a car crash. Please let them die in a car crash." I remember the sidewalks had stampings from the dates they were poured (1930's or there abouts) and I remember the walnut trees and how the crows used to drop the walnuts onto the cement streets (CEMENT STREETS) to crack them open. I remember the orange groves (that's why they called my little city 'Orange' I guess) I remember I used to try and go as slooowly as I could walking home.
I was 8 (ish) years old.