Exasperation is the mind's way of spinning its wheels until patience restores traction.

Now that your speech impediment has been rectified, perhaps you might say something. It would be best if it were humorous. I enjoy a good jest.'

'You are dreadfully rude,' I said to him.

He sighed. 'That wasn't the slightest bit funny.

Sir, you have tasted two whole worms; you have hissed all my mystery lectures and been caught fighting a liar in the quad; you will leave by the next town drain.

Your damned nonsense can I stand twice or once, but sometimes always, by God, never.

Give Me Strength! A petition no doubt directed at our Creator above, these words are uttered in times of complete exasperation.

Exasperation is the mother of invention.