When faced with an emotionally agitated passenger shouting verbal abuse or making unreasonable route demands, how should a professional bus driver handle the situation?

1. Remain calm, use polite and firm professional language, focus visual and mental attention strictly on driving safety, and stop safely to contact dispatch or police if the passenger threatens safe operation
2. Scream insults back at the passenger using the onboard public address microphone
3. Turn around to glare at the passenger while speeding through red lights
4. Slam on the brakes repeatedly to shake the passenger off their feet