This car was speeding in and out of traffic. I guess me going the speed limit on a college campus wasn’t fast enough for them and they quickly got into the next lane then tried to sliver in front of me. There was hardly any room for them to do that, causing me to slam on my brakes just for us both to end up at a red light. I couldn’t crashed into the car and then the car behind me was forced to also slam on their brakes.