The bartender eagerly brings over another bottle, as Arthur empties his own glass, then proceeds to empty the first bottle by pouring them both another.

It's been quite some time since he's been able to do this, indulge in it. Enjoy good drink and good company, and probably make mistakes afterwards. He'd been too sick back home, and before this party there wasn't actually any good booze in Anchor.

So he downs the next glass just as eagerly.