>     A nun walked into a liquor store and asked for a bottle of 
>     gin. The guy at the counter gave her a look as he handed her 
>     the bottle. Noticing the strange look, she said to the guy, 
>     "This gin is for the Mother Superior's constipation."
>     
>     The clerk shrugged and gave it no more thought.
>     
>     About an hour later he closed up shop and was walking home 
>     when he came upon the same nun sitting on the curb with an 
>     empty bottle. She looked to be three sheets to the wind in a 
>     hell of a gale. Shocked, the guy exclaimed, "Why, sister! 
>     You said that gin was for the Mother Superior's 
>     constipation."
>     
>     "It is," the nun chuckled. "She's really going to shit when 
>     she sees me!"