I’m sure it’ll never be really answered.
But rewatching Rumors last night on UK television, for some reason the fact that Sam delivered pizza to Dalton at night and Kurt was there stuck in my head.
I know in fanon, Dalton is a boarding school and Kurt often boards in fanfic (probably because it makes hookups with Blaine more convenient). But no mention is ever made of it either way — even whether Blaine boards or not — in the show.
Not that I was never in my high school at night. Rehearsals, printers’ deadlines, etc all kept me in school til crazy hours! But yeah, still. It’s rolling around in my head.