Once upon a sunny morning a man who sat in a breakfast nook looked up from his scrambled eggs to see a white unicorn with a golden horn quietly cropping the roses in the garden. The man went up to the bedroom where his wife was still asleep and woke her. “There’s a unicorn in the garden,” he said. “Eating roses.” She opened one unfriendly eye and looked at him. “The unicorn is a mythical beast,” she said, and turned her back on him. The man walked slowly downstairs and out into the garden. The unicorn was still there; he was now browsing among the tulips.
James Thurber (1894-1961) American cartoonist and writer
“The Unicorn in the Garden”, The New Yorker (31 Oct 1939)
Full text.