Passage Summary: There's a rule that says you shouldn't return something if you've already used it as much as you planned to. James returned a camera after two weeks, so he's unethical.

Conclusion: James's action of returning a video camera to the store after two weeks was unethical.

Reasoning: A general principle states that returning a purchased item is unethical if the buyer has already obtained all the use they originally intended to get from it.

Analysis: To justify the application of this principle, we must prove that James fits the specific criteria mentioned in the rule. The principle hinges entirely on the buyer's 'intended use.' We don't know why James returned the camera; for the conclusion to be valid, we must assume he finished his intended project within those two weeks. Look for an answer that confirms James had no further plans for the camera at the time of the return.