They sat on the curb; the cement poked their flesh. He flicked his finger against the loose gravel summoning rocks toward him. The sky throbbed blue, and the hot air was stiff. He squinted against the angle of the afternoon glare as he launched a pebble at the grate. It gave a metallic ping as it ricocheted on the bar and skidded over the asphalt. She dug in the curb under her to produce ammo of her own. Eyebrow cocked, she heaved the rock at the sewer. It sailed through the bars ending with a satisfying watery plunk.