It's a riff on Indiana Jones. The concept of Dr. Scones borrows some from Indy, but he's more academic and far less swashbuckling than Indiana Jones.
One day, Dr. Scones makes his entry looking considerably puzzled and ill at ease. He's peering under chairs and looking behind things...as it turns out, he's missing a flash drive full of photographs of the Elgin Marbles.
Teacher: Doctor Scones, are you all right?
Scones: I've lost my marbles!
It is just good clever writing.