A nun was walking in the convent when one of the Fathers noticed she was gaining a little weight. "Gaining a little weight are we sister Susan?", he asked. "Oh no, Father. Just a little gas." Sister Susan explained, matter-of-factly. A month or so later the Father noticed that she had gained even more weight. "Gaining some weight are we Sister Susan?", he asked again. "Oh no, Father. Just a little gas." She replied again. A few months later the Father noticed Sister Susan pushing a baby carraige in the convent. He leaned over and looked in the carraige and said - "What a cute little fart!"