Favorite things that aren’t canon but are canon in your head?
Mine
That Draco at the robe shop wasn’t being snooty but an awkward rich child trying to impress Harry
The Potter “Curse”. That they have one person set for them and when they are “set” on them they lock in and become obsessed (James with Lily, and Harry without his knowledge to Draco)
That Slytherins really only harass Gryffindors and anyone who is friends with Harry Potter. The rest of the school does not gaf about Draco because Draco does not bother them, and they do not gaf about Harry because Harry pretty much sticks to his own house. So the Slytherin’s being evil thing is mostly just Gryffindors propaganda
Draco tossed Harry his wand in the final battle
These are the ones on the top of my head. i’ll probably add more when i think of it