Explain SMBC — the wiki for Saturday Morning Breakfast Cereal

The Joke

A man pitches an imaginary product to his friend: a "happiness spigot" you can install in your house that activates just by looking at it. The catch is that the spigot requires constant maintenance, makes loud noise, and will randomly release sewage. His friend considers these severe downsides and still declares it "a pretty good deal." The final panel, labeled "Earlier," reveals the context: someone had asked the man "What's it like having kids?" The entire sales pitch was his answer -- children are the happiness spigot.

The Humor

The comedy works through an elaborate bait-and-switch analogy. By framing parenthood as an absurd consumer product with terrible side effects (constant maintenance, noise, random sewage), the comic highlights how objectively awful the practical realities of raising children sound when listed plainly. The punchline lands because the friend still thinks it is a good deal, which mirrors how parents acknowledge how exhausting and messy children are yet still consider the experience worthwhile. The "sewage" is a thinly veiled reference to diapers and the general messiness of small children. The structure of revealing the context last ("Earlier") forces the reader to reinterpret the entire conversation retroactively, which is a classic SMBC comedic technique.