When Arthur finally shows up, Hal leans back, grins and takes a bite from his snack. "There you are. You're a hard man to reach."

Then he constructs a giant net which he sends into the water to scoop up everything he's dropped and proceeds to return everything from where he got them. No more trash! Hal shrugs in a way that says 'happy now?'.

He's pleased to see Arthur alive again. He'd heard he was back, but he hadn't had a chance to see for himself. And while this wasn't the best circumstances, it was the best Hal could do. No, that was a lie, this was the best thing he thought he could do.