The gnat and the gnu.

A gnat
And a gnu
met at a feast,
their favourite treat,

The gnat needled the gnu needlessly.
The gnu munched on heedlessly.
The gnat nipped the gnu in the knee,
Saying “give it to me, it’s mine see!”
The gnu genuflected in pain and surprise,
And what’s more
He was more than somewhat sore.
Whipping out a gun from his valise,
which he kept for just such an occasion,
when alliteration becomes a bit of a bore,
he drilled the gnat between the eyes,
saying “ take that and that,
you nettlesome gnat.”
And that
Was the gnat’s demise

                                                            Laki 1985