College janitor who disappeared

I guess I'll go for bein a janitor, or somethin like that. My Uncle Fred's a janitor up at the college, and he says there's an op-nin, because this other Janitor, he disappeared, just took off or somethin, and - ' 'Arnie says when they closed down the garage, he lost his whole socket-wrench kit,' I broke in.

Janitor whose disappearance creates a vacancy mentioned by Jimmy Sykes; no identity link to another King story inferred.