Of all the things that Percy expected to see that evening, Draco drunk was not on that list. Of course he didn't realize that the blonde was drunk at first - just that he seemed to be clinging to the doorframe as if it was a close and personal friend of his, which seemed rather odd. And odder still was the fact that he seemed to be gesturing to him to come over.
But he set his book aside, neatly stacking it on top of the others, and rose. "Yes?" he asked, a bit warily, because one could never tell what Draco Malfoy might want at any given time. He crossed the library and went over to him - and was practically bowled over by the scent.
"Draco. Did you bathe in alcohol?" he asked, a bit incredulously. He certainly smelled it! That might have explained why Draco was leaning on the doorframe so heavily.