So I'm rereading HBP before I hit the midnight show tomorrow, right, and I run across this on page 485 of the American edition:

"I have had it all tested for poison," [Slughorn] assured Harry, pouring most of the first bottle into one of Hagrid's bucket-sized mugs and handing it to Hagrid. "Had a house-elf taste every bottle after what happened to ( Read more... )