This triggered my old memory.

3 Priests take a Train Trip
Two young and an old senior priest are taking the train to a conference in Pennsylvania.
They decide that it would be best if only one of them went to the counter to buy the tickets.
The first young priest goes to the counter, and while standing in line he notices the ticketing agent.
She is a young lady wearing a see-through top with nothing underneath.

Now, somewhat flustered, he says to her, "I'd like three pickets to Titsburgh, please."

He gets so embarrassed he leaves without the tickets and returns to his companions to explain what happened.

The second young priest says it will not be a problem for him. Confidently, he approaches the agent and says,

"I'd like three tickets to Pittsburgh, please, and I'd like my change in nipples and dimes."

He, too, gets embarrassed and leaves in shame.

The old priest, determined to set an example for his young wards, steels himself, walks up to the counter and says to the agent,

"I'd like three tickets to Pittsburgh, please, and I'd like my change in nickels and dimes."

He receives his tickets and change, and on his way back to his friends, he swaggers triumphantly over to the young woman and says,

"I hope you realize, young lady, that when you get to Heaven, Saint Finger is going to stand there and shake his peter at you!"