Well if you act like a brat then you deserve every dirty look that gets thrown your way, and if she really hated you she would have some other poor nurse switched to your service to put up with you.

[But he's bartering for a thermos, and while ordinarily that would be fine for him on a normal day and he drinks the stuff like it's water, she wants him to be well rested instead of sleeping minimal hours like he usually does.]

I will bring you a small thermos, and the deal can be renegotiated for a bigger one tomorrow pending your continued good behaviour.