When is there violence in A Midsummer Night's Dream?

There is nothing serious but Hermia attacks Helena ("I am not yet so low that my nails cannot reach unto thine eyes.") in Act III Scene 2 and later in the same scene Demetrius and Lysander decide to fight to determine who gets Helena. However, nobody gets hurt. Helena runs off ("My legs are longer, though, to run away.") and Puck separates the young men and puts them to sleep before any blows are exchanged.