I am routinely startled and pleased every time I remember that Catuullus was responsible both for one of the most gutting elegies I know of (101) which ends with the well known phrase

    And forever, brother, hail and farewell 

.. was _also_ the guy who wrote the angriest and most explicit rebuttal to a critique of his style -- so rude, in fact, that it wasn't printed in translation in english until the middle of the 20th century, because the opening lines are:

    I will sodomize you and face-fuck you,
    bottom Aurelius and catamite Furius,

Which even in this article is alluded to, but not actually printed.

[0]: https://en.wikipedia.org/wiki/Catullus_101 [1]: https://en.wikipedia.org/wiki/Catullus_16