Jessea L. Vaughan's poem begins by shrugging off lies as harmless: half-truths, fictions "of no consequence." The speaker admits they're easy to spot, yet we ignore them because we're busy with the routine of eating, sleeping, and going to work, plugging numbers into a formula. Life keeps us occupied enough that we don't look closely.
Then the tone shifts. The lies become visible because things stop working: the numbers don't add up, the shoes don't fit, and the jersey, tossed from a t-shirt gun, turns out to be the wrong one. The speaker says "you're your own enemy," which suggests we bear some blame for accepting what we're handed. The pronoun then moves from "you" to "us," widening the problem into a shared one. Spoiled food with a distant expiration date and a supply meant for a week that lasts a day make the damage concrete.
The mood moves from wry and casual to anxious and bitter. The closing lines repeat the opening, but "harmless" becomes "horrific," and "no consequence" becomes "ultimate consequence."