Thank you so much, Tabitha!  Yeah, the Slytherin issue is kind of tricky.  The truth is that right now there are a lot of bad seeds in Slytherin.  Quite a few of them come from DE families, and if not actual DEs, a lot have families that do believe in pureblood supremacy.  It's like a poisonous root in Slytherin, from the time Tom Riddle was there (maybe even further back what with Salazar Slytherin's basilisk), and even with Voldie gone, it's still going to take a while before it all dies out.  Like Hermione said, the troubles go back for years and it's not going to smooth out overnight.  Still, there are some good Slytherins and it's not right to be prejudiced against everyone from that House.  I suppose the best way is to treat everyone as an individual, but as Ron said, watch your step until you know them.

Maybe Draco is beginning to learn something, or maybe he's just afraid of being expelled, hmm.  I am trying to get to more of his story, but I don't want to rush it...we will get there eventually, though, promise.