Noun
hysteria - A state of extreme excitement, fear or anger in which a person, or a group of people, loses control of their emotions and starts to cry, laugh, etc.
There was almost mass hysteria when the band played their final song and some in the crowd rushed towards the stage.
vendetta - A blood feud in which the family of a murdered person seeks vengeance on the murderer or the murderer's family
As the final act of his vendetta against Rugen, Inigo pulled out his sword and said, "Hello. My name is Inigo Montoya. You killed my father. Prepare to die."