Harry Potter: 10 Worst Things Snape Ever Did

10. Favoured Slytherins

Compared to some of Snape’s other actions, this is rather tame, but his childish habit of favouring students in his own house is still pretty pathetic.

Though house points fall into irrelevance as the series goes on, for the younger students at Hogwarts, they’re a key part of their experience – they enjoy the communal effort of gaining points and representing their house.

Snape, of course, is fully aware of this fact. He abuses the power he wields and wastes no time punishing students for minor offences that most teachers would pass over. Some students suffer this nastiness more than others – Neville Longbottom is constantly bullied by Snape.

The Slytherins, meanwhile, are praised for the smallest of achievements and their mistakes are simply ignored by the Potions Master.