Here is an engineering joke that also involves god.
Three men were sentenced to death by guillotine: a priest, a lawyer, and an engineer.
The priest wanted to lay upward to face his maker during his death. He fervently prayed.
The blade came down and stopped one foot short of his neck. He was set free because of a law about executing twice.
The lawyer decided to do the same, and he fervently prayed. Despite his sins, the blade stopped one foot short of his neck too. He was also set free.
The engineer decided to do the same, but he saw a loose nail that was stopping the blade. Before the blade was dropped he yelled, "Stop!! I see the problem. I think I can fix it.