[@aviendha] Grey may have had good intentions, but again as I said that's how it was perceived. Also I believe a problem here might be how we didn't quite establish how much the Guild members know about each other. Yes, I think its safe to say that everyone knows Gray fights with shadows, and even how that's the bulk of her fighting power. The thing is that doesn't mean everyone knows absolutely everything either, that they don't know the specifics unless they've been told as much. Grey doesn't interact much with the other members either, right? 

The thing is Kaito isn't your character, you don't know what he knows, you don't know how he thinks. Hell, even if he knew every little detail about Grey's power, and knew exactly why she decided to rest, that doesn't mean it still wouldn't have been seen as disrespectful. By the same token I can't say he would have still reacted like he did, maybe if he had this knowledge he would've continued the fight. The only person here who can answer that question is Torack.