As a study by Trademob in late 2012 showed, around 40 percent of mobile ad clicks are either fraudulent or accidental, with more than half of them a result of ‘fat-finger syndrome’. That’s obviously bad for conversions and one major reason why advertisers pay less for mobile impressions (Google added another click into the mix to ensure users really wanted to visit a site). But Y&R, MEC and mobile advertising sales agency Mobile Embrace are trying to fight unintentional clicks another way: by making slightly more interesting mobile ads.