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.

Can I take his place?
An attorney telephoned the governor just after midnight, insisting that he talk to him regarding a matter of utmost urgency.

An aide eventually agreed to wake up the governor.

"So, what is it?" grumbled the governor.

"Judge Garber has just died" said the attorney, "and I want to take his place."

The governor replied: "Well, it's OK with me if it's OK with the undertaker."