[If the paint was actually about to fall over, Sebastian would have moved to catch it (he could do that, because Sebastian is amazing like that). Since the bucket regains its equilibrium, Sebastian doesn't move a muscle. Instead he just looks on, unimpressed.
Syaoran. He... he's already seen it. He can still see it, because Syaoran is a CLAMP noodle and doesn't cover much of the wall.]