The way I see it, not even technically was it Faramir's chair. Faramir says himself that he hasn't yet taken up the mantel of Stewardship (or something like that) while talking with Éowyn more than a week later. So it's not his chair...yet. But yeah, since they kept stubborn dwarves out of Aragorn's chair for long years, you'd think they could keep Faramir's chair empty for a couple days...
|