Normally I hate it when people make non-canon nicknames for characters (like calling Hermione "Mione," or Foggy "Fog"), but I am strangely not bothered by Foggy calling Matt "Matty."

But like, I am weirdly hesitant to have Foggy call him that in my own fic, because he never says that in the show (does he?). He calls him "buddy" a few times, but idek... "Matty" was a thing his dad called him. (..... right? I'm not imagining that, am I? Or has a fandom norm just wormed it's way into my brain?)