Is Charles Schultz to blame for all the silliness on college campuses these days? Twenty year olds still clutching to their security blanket. In the American cartoon strip Peanuts, creator Charles M. Schulz's character Linus van Pelt carries around a blanket wherever he goes for comfort. Today, we refer to such an object as a "security blanket." The emergence of that sense of the term is contemporaneous with the first appearance of Linus with his blanket.