Patrick was driving down the street in a sweat because he had an important meeting and couldn't find a parking place.
Looking up to heaven he said, "Lord take pity on me. If you find me a parking place, I will go to Mass every Sunday for the rest of my life and give up drinking!"
Miraculously, a parking place appeared.
Patrick looked up again and said, "Never mind, I found one."
Guinness is good for you, say medical experts