The sound comes from a viral video filmed in Richmond Park in London, where a dog named Fenton chased a herd of deer while his owner shouted after him in alarm. The clip spread widely on YouTube and social media in the early 2010s, becoming shorthand for a pet completely ignoring its owner. Its appeal has lasted because the moment is instantly recognisable, easy to reuse, and captures the universal frustration of losing control of a runaway animal.