Thin Black gentleman with head wrap, sitting on park bench taking his shoes on and off, surrounded by his few worldly possessions: NEVER STOP. (When I passed him a little later, he was standing and shouting at passersby.) 

Bumper sticker: MY OTHER RIDE IS A DETERIORATING BODY OF FLESH AND BONES

Young Black woman on bus, with hair pulled back in a ponytail: GOD DON’T PRAY ABOUT ME

At kindergarten dismissal, on various White parents: TOKYO GHOUL, GUANTANAMO BAY, and I WAS NORMAL TWO DOODLES AGO