At first it was simply a mild irritation
At his slightly buck-toothed expression.
He carried on, convincingly enough,
But then there was his lisp, you hardly heard it
At first, but gradually it became unmissable:
THs as Fs. It was tedious.
He tended to begin with a slightly out-of-kilter
Remark that caused you to pause,
But then he expanded, rapidly; his voice
Louder by the F, and there was no denial,
Remonstration or disagreement.
His own opinion poured out of him,
Flooding the ears of his unwilling listeners.
More about this plague and how Marcus Aurelius tried to deal with it