Final answer:
It is false that you should back slowly until you bump into the dock; it is unsafe and can lead to accidents. Instead, use mirrors, cameras, or spotters to guide you safely without the need for contact.
Step-by-step explanation:
The statement that you should back slowly until you bump into the dock because you can't see behind you is false. Backing up until you bump into something is unsafe and can result in property damage, injury, or accidents. In a situation requiring you to reverse towards an object such as a dock, extra caution should be taken.
This includes using mirrors, cameras, or even enlisting the help of a spotter who can guide you. In many cases, vehicles designed for this type of maneuvering are equipped with additional mirrors or technology to assist with visibility. Similar to the ship analogy where the masts remain visible to indicate location, these tools help a driver to gauge distance without needing to resort to a collision to confirm positioning. Just as with a ship on the horizon slowly disappearing due to the curvature of the Earth's surface, careful observation and adjustment are necessary when guiding a vehicle in reverse.