Tega Brain and Surya Mattu have come up with an "art project" (Unfit Bits) that gives people practical tips on how to cheat fitness trackers, such as the Fitbit. Why would you want to cheat a fitness tracker? Perhaps because your employer is offering a financial incentive to wear the tracker and is then monitoring your data and sharing that data with an insurance company. So screw them. Take their money and supply them with a stream of bogus data.
The cheat methods are as easy as tying the tracker to a pendulum or to the branch of a tree, to make it think you're walking around when you're really slouching in front of the TV. Notes Mattu, "We’re putting this kind of trust into devices that are very simple. Unfit Bits shows how silly the data is from these kinds of sensors." More info at Observer.com.