In The Pigman by Paul Zindel, why does Lorraine say that she is calling Mr. Pignati?

In Chapter
Three, John explains the rules for the telephone marathon, which is a prank calling game the
teenagers play. The idea is to keep the person on for as long as possible by drawing out the
conversation. When picking out a number from the phone book, each player must close his or her
eyes and simply point to a random name and number. In Chapter Four, it's Lorraine's turn and
she's nervous. Since she is nervous, she does take a quick peek at the...