Ask why and understand the reasons for a feature so well that when you explain it back to the business user requesting it, they nod, say "exactly" and their eye

Ask why and understand the reasons for a feature so well that when you explain it back to the business user requesting it, they nod, say "exactly" and their eyes sparkle. Then change how the feature works, or eliminate it, or address the business reasons using a completely different implementation and sell it to the same person in a way that has them enthusiastically agree and sign off on it.