The janitor was upset about his job

This joke sweeps in with a classic pun, cleverly playing on a common idiom. The humor hinges on substituting a familiar phrase about feeling overwhelmed – "pushing me to the brink" or "pushing me to the limit" – with a tool central to the janitor's profession. It's the unexpected twist of "broom" instead of "brink" that makes the punchline land, giving a literal, albeit silly, twist to a feeling of job stress.

Beyond the linguistic gymnastics, this gag taps into a relatable universal truth: the frustrations of work. Many people can empathize with a job that feels like it's "pushing" them, and the image of a janitor feeling pushed specifically to their primary tool creates a wonderfully absurd, yet understandable, picture of workplace exasperation. Janitorial work, while essential, is often physically demanding and can certainly feel like it's pushing one to their limits, making the pun all the more fitting for a laugh.