Dear Headmistress,
I intend on quitting my position as Groundskeeper, after which I suppose it would be left to Mister Nny to do the job independently, which I am certain he'd be quite all right with. I thought I ought to let you know, as knowing such things is of course always useful for those in charge, and it would only be polite to ask if you had any problem with this.
-J. Teatime, Hufflepuff, (ex-)Groundskeeper, Captain Concise