"That is not at all convincing," Weiss says with a roll of her eyes. She shifts her weight to one side as she folds her arms, and for a brief moment, it looks like she's looking him over because she's deciding whether or not she should help him out. She has some Dust reserved. With a flick of a wrist, she could create some water from it to drink.

But that's way too much effort and they really should be conserving their resources. There's much that hasn't been explained yet, and much that she personally needs to find out on her own regarding what is happening now and where they are. Qrow can drink the remains of his flask instead of be provided with water. He'll survive, loathe as she is to admit that the alcohol may be helping this time.

"I'm afraid to say that I can't exactly carry you around if you end up having food poisoning."

A cold addition to her response to be sure, but she'll end up freaking out if Qrow ends up passing out, anyway. She does care about the well-being of others even if she's so prickly majority of the time.