The Pope dies.

...and stands in front of St. Peter.
"I would like to get into heaven. I am the pope."
"The what?"
"The pope. Vicar of God on earth."
"Ehm... let me check that. I'll be back."

Pete to God:

"There is a guy outside, calls himself the pope."
"The pope?"
"Yeah, he says he is your Vicar on earth."
"Hmmm. Never heard of him. Let's ask Jesus."

"Son, do you know anything about a pope? He is standing in front of the gates and wishes to enter."
"No idea... but I will talk to him."

A few minutes later Jesus returns, shaking with laughter:
"Apparently this club of fishermen I founded 2000 years ago still exists."