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 loaned out, 
but she could wait until it was returned. Since Sister Mary Ann 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, 
Sister Mary Ann carried the bedpan to the station, filled it with 
gasoline, and carried the full bedpan back to her car.

 As she was pouring the gas into her tank, two Baptists watched from 
across the street. One of them turned to the other and said,
 'If it starts, I'm turning Catholic.'