What should you expect when another driver aggressively approaches you from behind?

• They will maintain a safe following distance.
• They will probably overtake you and then merge too closely in front of you.
  Explanation:

  "Be prepared for the actions of other drivers and adjust accordingly. For instance, if you observe a driver aggressively overtaking and weaving through traffic behind you, expect them to overtake and potentially merge in front of you abruptly. In response, reduce your speed and stay alert to apply the brakes if needed."
• They will signal for you to speed up.
• They will activate their hazard lights.