A fatal car accident is shown in glimpses: we see cars swerving, a driver's frightened expression, a car about to skid underneath a truck, then the driver's face with a little blood on the forehead (seen through the cracked windshield of the driver's overturned car).
A few people in a car open fire on boys playing basketball (one of the players shoots back at the car while the others fall to the ground); no one is injured, but all seem pretty shaken afterwards.
In a dance club, a boy slaps something out of another boy's hand, throws him into a chair and a wall, and then punches and kicks him repeatedly, with great force; two other boys get involved, also punching and kicking each other.
A girl is hit in the head with a basketball when another girl blocks a shot during a game; one of the girls pushes the other into a wall, one tackles the other from behind, then they roll around while slapping and scratching each other (one has a scratch on her cheek and an abrasion on her eyebrow, which is seen in several scenes afterwards).
A boy holds a crying girl's face, verbally threatens her and forcefully slaps her face; he lets her go after she scratches his jacket.
A boy grabs a girl's arm, pushes her against a wall and verbally threatens her.
A boy kicks another in the back and knocks him to the ground, a boy punches another in the face (some blood is visible on his mouth), boys push each other a few times, a girl squeezes a boy's crotch for several seconds (in a violent rather than sexual way) after he grabs her buttocks.
A boy lifts up his shirt to reveal the handle of a gun that's sticking out of his waistband; he talks to his friends about "getting even" with someone.