An old dying man wants to be buried with his money. He tells to his priest, his doctor and his lawyer :
- I put 30 000 $ in your hand ; I trust you to put this money in my coffin when I'll be dead.

In the funeral, every man puts an envelope in the coffin. Suddenly, the priest sobs and confesses :
- I put only 20 000 $ in the envelope because I needed 10 000 $ to repair the roof of the church.
- Well, because we are between reliable people, says the doctor. I put only 10 000 $ in the envelope because we needed a new machine with X-rays for the hospital.
The lawyer answers :
- I am ashamed of you two. I put all the money in the coffin : I put a check of the totality 30000 $.