Why did John get interested in Mr. Pignati in The Pigman?

Readers can begin finding this information at
the end of Chapter 3. John and Lorraine are telling readers about their prank phone calls and
some of the games that they try to play with the people that pick up the phone. One of the games
is to try and keep the person on the other end of the line talking as long as possible. In
Chapter 4, Lorraine calls Mr. Pignati. She is able to keep him on the phone for a long time, and
she even convinces him that she is collecting money for a charity. Mr. Pignati agrees to donate
money to the "L and J Fund," and John and Lorraine agree to pick up the money the next
day. Mr. Pignati begins winning over their hearts and minds from that point, and the
relationship becomes quite a loving and deep relationship between the three people. The
relationship is especially beneficial for John and Lorraine because they have no stable adults
in their lives.