An old woman is in a nursing home, she’s in a wheelchair.

It’s her 100th birthday so all her family are visiting. Suddenly, she begins leaning to the left in her chair, so the nurse runs over and props her up with a pillow. Then she begins leaning right and again the nurse props her back up with a pillow. Then she begins leaning forward and the nurse props her back upright. Then, her grandson finally shows up and says, “How are they treating you, grandma?” She says, “Fine, except they won’t let me fart.”