There is a woman at my health club who always begins her workout with sit-ups and leg-lifts. One afternoon she entered the exercise room and, as usual, lay down on the slant board as if she were about to do sit-ups. This time, though, she did none. Instead, she turned around on the board and positioned herself for leg-lifts.
Again she stayed there for several moments without doing a single exercise. Finally she got up and headed out of the room. As she walked past me, she said, "Thinking about it was enough for today."