I wish I could clean mirrors for a living. It's something I can really see myself doing.
Why this joke works
A Reflection on Career Plans
“See myself doing” normally means imagining a future job. A mirror makes the phrase literal because a cleaner sees their own reflection while working. Let the first sentence sound like a genuine career thought, then move naturally into the second. Avoid pausing before “see myself”; the joke is stronger when the everyday expression reveals its literal meaning without any warning.
A closer look
The Career Vision Appears in the Reflective Surface
The first sentence presents an oddly specific employment wish. The explanation then sounds like ordinary confidence about a suitable future until the mirror supplies a literal image of the worker. “Really” strengthens both the certainty and the clarity of the reflection. The joke stays warm because the imagined career remains plausible; only the reason for choosing it bends into wordplay.
Fact behind the joke
Mirror Images Follow Rules of Optics
NIST’s optics reference covers reflection, refraction, lenses, mirrors, spectra, and the mathematical relationships used to locate images. A household mirror forms an image because light from the viewer reflects from its surface into the eyes. Cleaning can remove material that scatters or blocks light, improving the view, but it does not place a second person inside the glass.