"The Last Straw" is a short story that explores the theme of frustration and the tipping point in a person's life. The protagonist faces a series of small annoyances that accumulate over time, leading to a moment of explosive reaction. This climax illustrates how seemingly minor issues can build up to create significant stress. The narrative highlights the importance of recognizing one's limits and the consequences of ignoring them. Through relatable experiences, the story emphasizes the need for self-awareness and the impact of external pressures on mental well-being, ultimately serving as a reminder to address problems before they escalate.