This, by his voice, should be a Montague.
Fetch me my rapier, boy. What dares the slave
Come hither, cover’d with an antic face.

– William Shakespeare

Romeo and Juliet, Act 1, Scene 5. Tybalt shows that he is an impulsive person ready to resort to violence without having to think about it. As soon as he hears Romeo’s voice at the Capulet ball he calls on his servant to fetch him his sword. He uses insulting language to describe Romeo a "slave" covered with an odd face mask. The aggressive Tybalt, Juliet’s cousin, is the villain of the play and acts on emotions.