the plaintiff brought his car to a mechanic for a tune-up. during the tune-up, the mechanic removed the fuse for the brake lights and inadvertently failed to replace it, causing the lights to stop working. as the plaintiff was driving his car home from the mechanic, he was involved in an accident. the plaintiff, seeing a friend walking along the road, slammed on his brakes to give the friend a ride. the defendant, who was driving the car behind the plaintiff, hit the plaintiff. the plaintiff sustained severe whiplash from the accident and has sued the defendant and the mechanic. at trial, the jury determined that the plaintiff's damages were $10,000 and that the defendant was 50% at fault, the mechanic was 25% at fault, and the plaintiff was 25% at fault. the jurisdiction recognizes pure several liability and partial comparative negligence. how much can the plaintiff collect from the defendant?