Sandy Songer of Broken Bow, Oklahoma, has a bit of advice for anyone who wants to watch chainsaw artists in action. “If you’re going to stay around us very long, you need to put some earplugs in,” she says with a laugh, as chainsaws revved and roared behind her like race cars, drowning out everything else in the background. From carnival barkers, to Ferris wheels humming, to snorts and moos of livestock shows, late-summer state and county fairs are noisy, chaotic affairs. Add to the din this