Do NOT sound your horn if
Correct answer
- a pedestrian is crossing in front of your vehicle.
- you're about to pass a bicyclist who seems to be unaware of it.
- you have lost control of your vehicle and are moving toward someone.
Explanation
You should use your horn when necessary to warn others of danger. However, do not use your horn or do anything else to rush or scare a pedestrian crossing in front of your vehicle, even if you have the legal right-of-way.