How does Edwin Brock, author of Five Ways to Kill a Man create ironic tone

Edwin Brock develops a satirical tone in "Five Ways to Kill a Man" by narrating numerous iconic tableaux of death from myth and history in a straightforward, matter-of-fact tone, then adding a deadpan shopping list of the things required to kill a man in this manner. He sounds as like he doesn't know what he's talking about.

put the trash into the back of the truck and drive the truck to the back. then you must unload the truck.