Why are u weird on coocococococ

What is implied in this sentence from mark twain's "the £1,000,000 bank-note"? i was puzzled, and wanted to discuss the matter a little further, but they didn't; so i took my leave, feeling hurt and insulted to be made the butt of what was apparently some kind of a practical joke, and yet obliged to put up with it, not being in circumstances to resent affronts from rich and strong folk.

Which sentence uses whether correctly

Wiesel interrupts the narration that begin with, "a few ss officers wandered through the room, " with a parenthetical insertion. explain the purpose of the insertion.