It’s noontime and several warehouse employees get together for lunch in the break-room. While they’re talking, several of them comment about the unusually strong smell of gas fumes up on the second floor of the building.

They pass that information along to a supervisor who checks out the report. Within minutes the supervisor orders the building evacuated. As soon as the employees have cleared the building, the supervisor cuts off all the electricity, then orders all personnel to move as far away from the building as possible.

Minutes later, a utilities maintenance truck pulls up and two men wearing jumpsuits and hard hats step out. They talk with the supervisor about the nature of the problem. He explains that several of his workers thought they smelled gas on one of the upper floors. The supervisor says he checked and found the workers’ report to be accurate.

The utilities guys nod and enter the building. Problem is, it’s very dark inside — with the lights shut off.

The warehouse supervisor is watching — from a safe distance — using a monocular lens. He notices the two men are looking around for flashlights. They seem frustrated because it’s so dark in the warehouse.

Then the supervisor, with his magnifying lens, spots one of the utilities inspectors reaching into his pocket. He comes out with something shiny.

"Oh, no," mumbles the warehouse supervisor, "he’s got a cigarette lighter!"

A heartbeat later there’s an enormous, blinding flash followed by a tremendous explosion. The concussion from the blast nearly knocks several of the warehousemen off their feet.

Much later, after burning bits of debris are extinguished, there are reports that parts of the warehouse were found as far as three miles away. Hours later an arson team finds the origin of the explosion — a Zippo lighter — still shiny bright and virtually undamaged by the blast. Officials find no trace of the two utilities inspectors.