It's nice to have an out, but he gives the other man a shake of his head and a half-smile.

"Have to? No. We don't. But I think we've both chosen to at this point, because it might be nice to know what all we can do. Even though I've no idea how to really measure that." He plops down on the ground next to the basin of water, looking at it with some curiosity before it hits him why that's probably there. All right. Moving on.

"What's the stone for?"