Why does maniac take mars bars to the pickwells house before the mcnabs house?

Maniac takes Mars bars to the Pickwells' house before the McNabs' because he is seeking a friendly and accepting environment. The Pickwells are known for being kind and welcoming, which contrasts with the McNabs, who hold prejudiced views against him. By choosing the Pickwells first, Maniac hopes to experience a sense of belonging and support rather than hostility. This choice highlights his desire for connection and acceptance in a community that has often been unwelcoming.