Nina cautiously raised her hand.

"Well, Professor, the money inside the bank obviously wasn't the goblins'. So they couldn't have been too surprised that wizards wanted to further their security on their own valuables? As long as the actual building lay in the hands of the goblins, they should be okay with it right? And it is, the goblins run the bank. It's just the idea of ownership that was taken away from them, not the physical aspect. Which is what they really care about... right?"