I wonder what you have to have to be a Slytherin, sure, you are almost always a pure-blood, and you are ALWAYS mean, and ''better'' than everyone else, but what else do you have to have to be a Slytherin. You are probably a follower of Lord Voldemort, or your parents are/were. But, you may just be absolutely fascinated by the Dark Arts (in a way that Voldemort uses them). Do you have to be pure-blood? Because Voldemort wasn't, his father was a muggle. And do you have to be mean, as one topic says, what if Tonks is a Slytherin, maybe not all Slytherins are mean, with their heads stuck up in the clouds, maybe that is just a mmajority of the Slytherins putting in that assumption.