An old and sick man is at the hospital, his wife at his side. They've been maried for 50 years.
The old man, who is about to die, gives a key to his wife and tell her : This is the key to my vault at the bank. Just don't open it before I die.
The old lady, back at home, can't stop thinking about what could be inside the vault. She decides to go open it.
Inside the vault, she finds 3 golf balls and 27 rolls of 50$ bills. She wonders what is all this.
She goes back to the hospital and asks her husband what this is.
The old man answers her : Well, everytime I would cheat on you, I would put a golf ball in the vault.
The lady ponders : 50 years of marriage, 3 cheating, that's not so bad
She then asks him : What about the 27 rolls of 50$ bills? Where does that money come from?
The old man: That is from all the golf balls I sold.