The cue comes from Lend a Paw, a Walt Disney cartoon released on October 3, 1941, starring Mickey Mouse and Pluto. In the story Pluto pulls a kitten from a frozen river, then grows jealous as Mickey cares for it at home, a plot that helped the short win the Academy Award for Best Animated Short Film. The ice sequence became a handy piece of classic cartoon scoring online, reused in edits where its bouncy, perilous rhythm instantly signals an old Disney chase without needing dialogue to explain the danger.