When must you intervene as bus driver?

As a bus driver in Germany, you must intervene if you are annoying others by making noise or if you open the doors without permission. This is because these actions can disrupt public order and passenger safety. Drinking refreshing beverages while driving is generally allowed and does not require intervention unless it impairs your driving. So, the rules require you to prevent disturbances and unauthorized door openings to ensure safety and comfort for passengers and others.