HIT HIM AGAIN, LORD!
At the turn of the 19th Century, the roof of the a little Swiss church hall was in serious need of repair. So the congregation held regular prayer meeting in the church hall after the service--to pray for funds to repair the roof.
An old man, well know for being "tight fisted," even by Swiss standards,used to regularly come to the prayer meeting. But he's always come in early so he could sit at the back of the prayer meeting. Then he would sneak out just before the collection plate came round.
One Sunday, however he was held up by the vicar after the service and consequently could only find a seat at the front of the church hall. During the prayer meeting a piece of the roof fell and hit him on the head. Feeling spoke to by the Lord, he stood up and said "Lord, I'll give 1000 Swiss francs"
And a voice at the back of the church was heard to say, "Hit him again, Lord!"