*laughing madly at the image of Choo-Choo-Train!Zack-n-semi-conscious-boys* And now, class, we will hear the story about the Little SOLDIER That Could...
Oooh. Cloud probably wouldn't have too much of a problem with it either, what with him having holes in his memory big enough to fly Libra through. Maybe a vague thought of, "So brothers do this with each other? Huh." because it isn't like he's ever had a brother before...
It's good practice for them too. Training for...being dexterous, and all. Fine manipulation. Yus.