The sound a cat makes when receiving medicine is put on her behind is an unexpected sight. Cat sitter Julie, a self-proclaimed cat whisperer, was shocked to hear the sound. The video was viewed as a hilarious sight, with viewers calling it "disgruntled" and "the cutest motor!" The AI generated these key points for Yahoo, which may not always match what's in the article but helps improve the user experience. The cat's reaction to the medicine was described as "anxious" by viewers.