In the Philosopher's Stone, Hagrid famously remarked that "There's not a single witch or wizard who went bad who wasn't in Slytherin.".-

But..There are a few big issues with this statement.

First of all, it's factually incorrect. While the vast majority of the dark witches and wizards in the wizarding world were indeed at one time Slytherin students, it certainly wasn't all of them.-

Second of all, many have interpreted Hagrid's statement to mean: 'all Slytherins will become evil', when what Hagrid really meant was that 'all bad witches and wizards ORIGINATED from Slytherin. Which is..Also not true.

I will admit that when you think about all of the evil in the Wizarding World, it is certainly hard to distance your mind from the green and silver house. However, in reality there are numerous other examples of BAD wizards that came from well...ALL of the other houses.

Think about it.

We had Pettigrew from Gryffindor.

We had Quirrell from Ravenclaw.

And from Hufflepuff we had....The subject of today's video! A dark wizard SO EVIL that many SLYTHERIN wizards PALE in comparison. Join me today as we peel back the layers of the most nefarious individual to arise from the black & yellow house.