It might help that he doesn't way a whole lot! But either way it's impressive, though he probably could have done with a bit of a warning, because this definitely isn't something he expected anybody, except, maybe, Kaiba to do, and even that was a stretch.

"Thanks a lot, Rin. Hopefully they can work out the kinks of their experiments, because getting home is definitely high on most of our lists of things to do, but if they keep having these terrible side effects, then eventually nobody's going to bother and we'll stuck in a standstill." He sighs, shaking his head.