How did Juma view the local inhabitants outside of Nairobi in the memoir, The Flame Trees of Thika: Memories of an African Childhood?

A Swahili from the coast, Juma, was quite prejudiced about other tribes. He tried to convince the Huxleys that some of the tribes were cannibals and that others were cowardly and stupid. Altogether, Juma came across as a very conceited man.