This reminds me of a few previous posts most notably http://sma11.com/2008/push-that-button/. Imagine there is a fire. Admittedly you would probably hit them all, or would you?

Would you think that the buttons related to the severity of the fire? Maybe the green one produces an ashtray, the amber notifies the janitor and the red does what you think it should.

And DON’T read the damn buttons, you wouldn’t in an emergency.

Picture was taken in the reception of Arcadia’s head office, London.