No gas problem for Luther

I love the earthiness of the reformer, Martin Luther. I suppose being German was partly the reason for his earthiness. Luther had a way of explaining the spiritual life that didn't mince words. For example, he gives advice about dealing with the devil. In the spring of 1533 he wrote:

Almost every night when I wake up, the devil is there and wants to dispute with me.I have come to this conclusion: when the argument that the Christian is without the law and above the law doesn't help, I instantly chase the devil away with a fart.