One evening a family brings their frail, elderly mother to
a nursing home and leaves her, hoping she will be well cared
for. The next  morning, the nurses bathe her, feed her a
tasty breakfast, and set her in a chair at a window
overlooking a lovely flower garden. She seems OK, but after
a while she slowly starts to fall over sideways in her chair.
Two attentive nurses immediately rush up to catch her and
straighten her up. Again she seems OK, but after a while she
starts to tilt to the other side. The nurses rush back and
once more bring her back upright.  This goes on all morning.
Later the family arrives to see how the old woman is adjusting
to her new home.
"So Ma, how is it  here? Are they treating you all right?" They ask.
"It's pretty nice," she replies. "Except they won't let you fart"