My father is currently in the hospital. Problems with heart. In addition to many other health problems because of his non-stop smoking, drinking and playing double bass (i.e. radically twisted spine). He is 73.
However, he does not lose his sense of humor. He boasted that he's now like RoboCop (I was suprised he knows who RoboCop is).
Additionally, he told us about a nice little game he plays in the hospital. He takes an empty pre-paid phone card, puts it next to the hospital phone and then laughs at the people who try to use it in vain.
He also wrote down our (mine and my sister's) mobile numbers, in the case he'd need to quickly call us while dying. Hasn't called yet...