Dead dogs are a theme throughout the movie. Big part of the the plot. There is a dead dog in the very beginning of the movie. There is another around 10:40 during the field hockey practice. Another around 16:00. Quick but graphic. A dog-like creature gets hit by a car.
Who the fuck said no? While in the back of his car, Ginger starts yelling at and becoming violent with Jason in the back of his car. He shouts "Stop! Stop!" And Ginger ignores him, forcing herself on him hard enough for him to have multiple wounds the next day.
Two of the characters talk about a suicide pact and specified ways of dying (slitting wrists, throat, and hanging). The entire credit opening shows different (staged) scenes of death by suicide.