Timmy dragged his father’s big sledgehammer across the back yard to the sandbox.

In his dad’s scrap-pile, he found a two-foot length of rebar. He posted it in the sand.

The boy strained to lift the sledge. Tink tink tink, the rebar sank until six inches protruded.

He upended a bucket of sand over the steel then lifted the bucket away, leaving a smooth, tall tower. He added walls, moats, battlements.

Johnny rounded the corner and spied the sandcastle. His eyes lit up evilly. “Nice sandcastle, nerd,” he said, as he wound back for a mighty kick.