Once more, Dean's common sense warred with his instincts to protect her from any sort of harm. She did have a point. Megan wasn't here, at least not yet, and who knew how long that mess could take. It was after midnight, and most normal people slept then but when had they ever been normal? As far as he was concerned, this was just another excuse to push him and everyone else away, and he wasn't having it.
Acting on impulse, he scooped her up and threw her over his shoulder. She could do less damage squirming that way, the extra blood rushing to her head would hopefully clear things up a little, and she'd be more in the dark as to what he had planned.
With one arm holding her legs firmly so that she was secure and in no danger of falling, Dean walked into the bathroom and turned the shower on to a setting that, while not freezing, was certainly cold enough to bring some life back in to her. "I'm doing this for your own good." He said sternly, then, without warning, deposited Claire in the shower under the stream of cold water.