Principle: It is unethical for someone who has bought an item to return it to the store after getting all the use from it that he or she ever intended to get.
Principle
If someone buys an item, gets all of the use from it they intended to get, and returns it, then they are acting in an unethical way:
buy, use fully, and return → unethical
Evicence in Application
James bought an item and later returned it
Conclusion
The return was unethical
Evaluate
The evidence in the application doesn't state why James returned the video camera. The principle only allows us to conclude that the return was unethical if we have evidence that James got all of the use from the camera that he intended to get.
Goal
Look for an answer indicating that James got all of the use from the cameral that he intended.