According to a news​ story, the Web site Stickk offers a service where you give them money that they will donate to charity if you fail to go to the gym as often as you promise to.​ (You can even have the money donated to an ​anti-charitylong dasha cause you disapprove​ of.) ​Source: Josh​ Barro, "How to Make Yourself Go to the​ Gym," New York Times​, January​ 10, 2015. Why would anyone use this​ service? People who fail to go to a gym to work out as often as they promise