What does Samuel's father mean when he says that "the blood of a man thickens with the desire for revenge, and if a man is to be complete again then he must let some of that thick blood flow"

On his way home after the play, Antonio sees Tenorio and Narciso fighting in the street. Eventually Tenorio runs off, vowing to kill both Narciso and Ultima. Determined to warn Ultima of this danger, the badly injured Narciso staggers to Rosie’s brothel and calls Andrew to the door to help him. Samuel says that blood has to be spilled in this conflict. . Samuel quotes his father, "The blood of a man thickens with the desire for revenge, and if a man is to be complete again then he must let some of that thick blood flow."

There are many bad words used in the play scene with Horse and the gang. There are also many bad words used in the fight scene between Tenorio and Narciso. Although both of the scenes use bad words, the moods are very different. List three ways in which they are different.