She walked to the station to borrow a gas can and buy some gas. The attendant told her that the only gas can he owned had been lent out, but she could wait until it was returned. Since the nun was on the way to see a patient, she decided not to wait and walked back to her car. She looked for something in her car that she could fill with gas and spotted the bedpan she was taking to the patient.
Always resourceful, she carried the bedpan to the station, filled it with gas, and carried the full bedpan back to her car.
As she was pouring the gas into her tank, two men watched from across the street. One of the them turned to the other and said, "If it starts, I'm turning Catholic."