yup. thought you wuz gonna get clear of this, eh? well, somebody else
started it this week! ;)

Plurality
   by Noahcount Webster

Upon the List, it's often said
That dictionaries should be read ...
That proper nouns and plurals, too,
Are oft misspelled by one or two ...
That in the pages Webster wrote
Is found the proper spelling note
To guide the errant Busophile
In proper English form and style.

But even Webster is unsure,
And so two forms we must endure
When plurals of our bus we write
Into our email, day and night.
To me, it's simple, without fuss:
Where there is one, you spell it "bus";
Where two or more? it's easy done ...
The plural form is simply "fun"!! :)