When I asked her once why she didn't walk to the gym and do five minutes less on the treadmill, she looked at me as if I were being willfully provocative.
'Because I have a program for the treadmill,' she explained. 'It records my distance and speed, and I can adjust it for degree of difficulty.' It hadn't occurred to me how thoughtlessly deficient nature is in this regard.
~ Bill Bryson "A Walk in the Woods"