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Why use a simple knock on the door when you can wire up a laser to tell you a bathroom is occupied? Gone are those awkward moments when taking care of business is unceremoniously interrupted. Thanks to the folks at Intuity, checking to see if somebody is in the WC is as easy as checking for the red dot of a laser or a real-time HTML5 app on your smartphone. [Thanks, Martin!]

Adam Flaherty

I make cool stuff and write about other people making cool stuff on makezine.com. If you have something you think I should see, send me a tip.


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