A shortcut for engaging your Emergency Flashers, without removing your hands from the bars.

Patrick Lewyllie <patlew@club.innet.be> figured out that if you depress both left and right turn signal switches simultaneously, all four directional signal lights will flash, just as if you had turned on the flashers using the rocker switch on the panel.

This is a great way to call attention to yourself or to notify motorists behind you that you are slowing for a traffic jam ahead - as the European's are known to do!