documents on which cheating often occurs, like tax forms and car insurance policies. Typically, individuals fill out information first, creatively or honestly, only attesting to accuracy with a signature at the end. But researchers sent an audit form to customers of an auto insurer, asking for their signatures at the top, like a swearing-in before court testimony. This form resulted in a 10.25 percent bump in the mileage reported, even though higher mileage usually translates into higher premiums.