Did you know,
(said with a Michael Caine voice) that many of the UK's pedestrian
crossing consoles - upon which you find the button to press in order to
cross - actually have a concealed button which is located underneath the console and out of sight!
When the 'green man' lights up, the hidden button then rotates, letting people who are blind AND deaf have a physical alert to know that it's now safe to cross the road.