There's nothing funny about plagiarism as Jessica Seinfeld is finding out. The cookbook author and wife of Jerry Seinfeld is being sued by another author who's accused the comic's wife of copyright infringement and defamation. Missy Chase Lapine is the author of The Sneaky Chef: Simple Strategies for Hiding Healthy Foods in Kids' Favorite Meals while Jessica authored Deceptively Delicious: Simple Secrets to Get Your Kids Eating Good Food, published six months later. Missy's lawsuit, filed yesterday in US District Court in New York, states, "This action for copyright and trademark infringement and defamation arises from conduct that gives new meaning to the terms 'arrogance' and 'greed.'" It also points to Jerry's comments on Late Show with David Letterman last October where he called Missy a "wacko... waiting in the woodwork." Talk about words coming back to haunt you!