Professor of Logic

The Moth Joke

Norm Macdonald Norm Macdonald
Share: Post Reddit

Late Night with Conan O'Brien, 2009

Find on Amazon

“Because the light was on.”

When Conan asks Norm to tell a joke, any reasonable comedian would deliver a quick one-liner. Norm does the opposite.

He launches into a story about a moth who walks into a podiatrist's office. The podiatrist asks why he's there, and the moth begins unloading his existential despair—his failing marriage to a moth named Judith, his estranged children, his dead-end job at the carpet warehouse, his crumbling sense of self.

The story goes on for nearly three minutes. The audience grows confused. Conan looks uncertain. The moth's depression deepens. He speaks of looking into an abyss and seeing nothing looking back.

Finally, the podiatrist asks: "Moth, you clearly need a psychiatrist. Why did you come to a podiatrist?"

"Because the light was on."

The punchline is an old vaudeville joke. The genius is everything that came before it—three minutes of increasingly dark setup for a punchline everyone's grandpa knew. It's anti-comedy as high art: the journey matters more than the destination, and Norm knew it the whole time.