A Clear Conscience

A man was lying on his death bed, his wife at his side.

In a very thin voice he said: "Darling I want to die with a clear conscience"

The wife replied: "Be quiet dear, just relax"

"But darling I'm so sorry, I've been lying to you, I did have that affair 18 months ago." said the dying man.

The wife replied:

"Yes I know, just lie back and let the poison do it's work."