An invisible man is here to see you
Nurse: Doctor, there is an invisible man in your waiting room.

Doctor: Tell him I can't see him now. Next.

A pious man who had reached the age of 105...
A pious man who had reached the age of 105 suddenly stopped going to synagogue. Alarmed by the old fellow's absence after so many years of faithful attendance the Rabbi went to see him. He found him in excellent health, so the Rabbi asked, "How come after all these years we don't see you at services anymore?"The old man looked around and lowered his voice. "I'll tell you, Rabbi," he whispered. "When I got to be 90, I expected God to take me any day. But then I got to be 95, then 100, then 105. So I figured that God is very busy and must've forgotten about me, and I don't want to remind Him!"