Nun walks into the liquor store and orders a fifth of whiskey. The clerk
says,"Sister! You don't need that!" And the sister said,"Oh...Its not for me, it is for Mother Superior...she is constipated!" So the clerk sold it to her.
Later that evening as he was closing up shop...he spotted the nun out on the sidewalk...drunker than a bicycle. He walked up to her and said,"Sister!...You said that whiskey was for Mother Superior...that she was constipated!"
The nun said,"It is...and when she sees me, shes gonna poop!"