If you tell them the whole riddle (“what is most scary, unkillable etc”), then give the answer, I’d say there’s a good chance that it would cast enough doubt for the animal patronuses to fail, at least temporarily. Also, Harry could improve his credibility by casting his human patronus.
True, especially on the last point. It still feels like there’s a large philosophical knowledge-set to convey before their Patronus fails reliably for the right reason. I see what you mean though. Maybe the habit (mental) necessarily built into the Patronus charm would be harder to override more than temporarily due to the strength in habit, or at least without genuinely shifting how that person conceptualises all the relevant stuff.
If you tell them the whole riddle (“what is most scary, unkillable etc”), then give the answer, I’d say there’s a good chance that it would cast enough doubt for the animal patronuses to fail, at least temporarily. Also, Harry could improve his credibility by casting his human patronus.
True, especially on the last point. It still feels like there’s a large philosophical knowledge-set to convey before their Patronus fails reliably for the right reason. I see what you mean though. Maybe the habit (mental) necessarily built into the Patronus charm would be harder to override more than temporarily due to the strength in habit, or at least without genuinely shifting how that person conceptualises all the relevant stuff.