Role of foreshadowing

Looking deeper, biting your thumb in the time in which the play was written is like giving someone the finger today.A pretty strong feeling comes with that,so we now are beginning to feel the tension in the scene.Later on in the scene, Tybalt,from the House of the Capulets,lays a good one on Benvolio from the House of the Montagues.Tybalt: What, art thou drawn among these heartless hinds?Turn thee, Benvolio,and look upon thy death.