Didn't have a Guinness on hand today, but did have one of my porters to go along with the corned beef dinner and soda bread and so this, from Flann O'Brien:
When things go wrong and will not come right,
Though you do the best you can,
When life looks black at the hour of night--
A PINT OF PLAIN IS YOUR ONLY MAN.
When money's tight and is hard to get,
And your horse has also ran,
When all you have is a heap of debt--
A PINT OF PLAIN IS YOUR ONLY MAN.