One day our boss decided it was time to save on electricity. The cheapest motion sensors were purchased to turn off the lights. One of these sensors was installed by handcuffs in the toilet. They didn’t find a better option than to turn it on instead of the switch – near the door, a meter from the floor. The sensor looked sadly at a number of washing machines and did his job properly. Once something broke in it and he began to turn off the light after ten seconds, if he did not record sharp movements (he did not perceive smoothness). To the toilet began to take lamps (in the cabins the sensor did not see movements), and washing hands started by making sharp rotating movements of the pelvis with a periodicity of 10 seconds, so that the light did not turn off.
I rattled like an unusual when I once saw the workers washing their hands at the same time in five washing machines and then in the mind of everyone worked a timer (type, now turn off the light) and all five synchronously twisted their asses, as in a cabaret)))