sponded with "'Tis said they eat each other'/" (II.iv.14-18) Tame horses do not usually go wild, and horses certainly do not eat each other.All of these unnatural events in nature led to some type of evil happening in the lives of humans. The people of Shakespeare's time period believed that an unnatural event was a punishment for something they did, or told of things to come and this is very evident in Macbeth. The most obvious unnatural occurrences seemed to foreshadow all the unusual happening in the lives of humans. ...