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My company used to have those, but they have changed to proximity doors on the exit side. So as you get close, it automatically unlocks. And they have removed the little "Press To Exit" buttons.
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So far so good.
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But our lights are remarkably similar in look to the "Press To Exit" buttons - and are unmarked. So about once every few days, someone turns off all the lights, out of habit. Luckily, I work in a office with glass windows all the way around, so it is no big deal. But on a day like today, very overcast and about to rain, it is a big difference when the lights go off.
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Normally you are working, the lights go off.. Then there is the faint grumbling and the tinkling sound of someone making a very embarrassed comment "Sorry Everyone". It hasn't been me yet (I wasn't here with the buttons).