Purity Test
One of my friends on facebook posted this purity test and I thought it would but fun to take it on behalf of one of my favorite characters (I picked Grindelwald, of course) and see what their score would be. 2000 questions later (I kid you not), he ended up with a somewhat disappointing 66.40% purity. Maybe my canon for him is somewhat conservative, although I pretty much let my imagination run wild as to what he might have gotten up to at Durmstrang.
I'd be interested to see people try this on other characters (or the same character), but be warned - for the sake of your sanity, I only advise it if you're, say, baking something that takes an obscenely long time and have nothing else to do while you wait.
I'd be interested to see people try this on other characters (or the same character), but be warned - for the sake of your sanity, I only advise it if you're, say, baking something that takes an obscenely long time and have nothing else to do while you wait.