In this case, a tiller isn’t what you use to steer a boat; it’s a reference to the farmers—those who till, or turn over soil for planting—who once made up much of Tustin’s population. Tustin High, which opened in the early 1920s, adopted the “Tiller” as its mascot. In 1957, the new annual community festival adopted the name. This year, Tustin Tiller Days (tustintillerdays.org), held Oct. 3 through 5 at Columbus Tustin Park, includes a carnival, a parade, a pancake breakfast, contests, music, and more. Don’t expect to see many farmers. Or boats.