PREVENT a form from being cleared? Or in the alternative, at least trigger a messageBox warning end-user this is a bad idea?

The "Clear Form" button located under "tools" > "forms" is great for that - clearing forms - but what if you don't want the end-user to accidentally click that button?  Is there a way to prevent or at least trigger a messageBox warning them they're about to lose all their work?

Designing in Livecycle, btw.

BR