Arch said:I dunno. Get it right, and in case of altercation with obstreperous motorist, you could headbutt them 3 times and simultaneously dial 999...
Or if (God forbid) I am in a crash I need to be sure and strike the ground three times.....
Actually I wonder if you could fit a helmet camera with a deceleration monitor that would automatically contact emergency services if it experienced a deceleration greater than a predetermined amount........
Time to pop down to my local patent office me thinks.....
P.S. At last I found a use for the light bulb emoticon.....