trial run

So someday I'll climb aboard Hereafter Express, and at the first stop, Purgatory, the door will open, and a woosh of flaming-hot-humid air will fill the bus, producing instant rivers of sweat trickling down our faces, a flash of red spreading on our cheeks. And as those assigned to this level depart, I'll be like, "Oh, okay, I know this. So you used Hong Kong for the trial run on the weather here?"