Ravenclaws with learning disabilities.
Hufflepuffs with anger issues.
Gryffindors with anxiety and panic attacks.
Slytherins that are too emotional to be mean to anyone.Slytherins with self esteem issues.
Always with the Slytherin hate. Slytherin isn’t the “mean” house; it’s the ambitious one. Lack of confidence could certainly get in the way of that.