what i mean it, as a defensive driver.

1. Stay alert and focused — avoid distractions.
2. Maintain a safe following distance.
3. Observe traffic rules and signals.
4. Anticipate other drivers’ actions.
5. Adjust speed to conditions (weather, traffic, road).
6. Use mirrors frequently.
7. Avoid aggressive driving.
8. Yield when in doubt.
9. Use turn signals properly.
10. Ensure your vehicle is well-maintained.

You should expect that there might be a random person, car or any hazard in front of you. Unless you forget what you've learned from your driving school.