Explain why, "Doris Is Coming", is realistic fiction

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.

When a mother loses her child, she's — highly agitated from strong emotion. a scene is if there's lots of action with little order.

Mr. underwood's editorial defending tom robinson is surprising because he's described as not wanting to be near negroes it's a dangerous stance to take at that time he had been neutral during the trial he wasn't in the courtroom