The laughter turns briefly manic before he manages to clamp down on his own tongue. Restraining himself is almost futile and he should probably stop trying to check in on people. The pain and the taste of copper manages to snap him into clarity for a moment, and he holds a hand over his mouth, while the other points at Kuai's red lantern.

"His - wasn't like that! He has... eyes! They look like key-eyes. Keyes!" he sputters, then breaks down into laughter once more that just won't seem to let him get a word through. It's remarkable that Kuai is handling this so well - both his current state of utter nonsense and his dragon-like form. Meanwhile, Rosinante fights back the fear of what this might evolve into, and finally gasps out a "Calm!" between bouts of laughter and goes completely silent, though all the motion of his laughing outburst continues on.