That Ronald McDonald fellow is nothing but a big fat liar. According to a newly-revived lawsuit, his deceptive advertising causes parents to feed their children cheeseburgers and fries when they would otherwise be feeding them, what, Pop Tarts?
Not clear if lawsuits like these will become the next tobacco litigation, but all the same rules certainly apply (some say nicotine's addictiveness distinguishes the two lines of cases; I say try eating just one french fry). Deceptive advertising laws are nice; someone should try applying them to politicians' campaign ads (it'd never fly, but would be fun to watch).