Sam nodded, remembering how Harry had lit all the candles in the room before the backlash of power had knocked him out cold. He hesitated, though, to answer Dean's next question--glad for the offering of the flask as an excuse to stall for time while he tried to figure out how much to say.
He would have taken the flask anyway, in case Dean was finally pulling out the holy water. Of course, it would be whiskey, and it would burn all the way down--but not nearly as bad as holy water would have if he'd been something nasty.
"You know there's a mixed drink called a Holy Water, that's also known as a Pornstar?" he mused aloud, spewing random trivia that was completely irrelevant to the conversation as he handed the flask back to his brother. He shook his head. "I remember everything, Dean."