The Apaches, they do not touch a man they believe insane, and Amos has many peculiarities: peculiarities of dress, of speech, of action.
Amos liked to wear animal costumes. 
mnli hypothesis: Amos liked to wear animal costumes.  premise: The Apaches, they do not touch a man they believe insane, and Amos has many peculiarities: peculiarities of dress, of speech, of action.