Sister Mary Margaret enters O'Flynn's liquor shop. "I'd like to buy a bottle
of Irish whiskey," she tells O'Flynn. The owner of the store shakes his head and
frowns. "A bottle of Irish whiskey? And you being a nun too." "Oh no, no,"
Sister Mary Margaret exclaims. "It's for Father Reilly. His constipation, you
know." O'Flynn smiles, nods, and puts a bottle into a bag. Sister Mary Margaret
pays, takes the bag and goes on her way.
Later that day, O'Flynn closes shop for the day. On his way home he passes an
alley. There in the alley is Sister Mary Margaret. She's rip roaring drunk, the
empty bottle at her side. "Sister!" O'Flynn scolds. "And you said it was
for Father Reilly's constipation."
"It is," answers Sister Mary Margaret. "When he sees me, he's gonna shit!"