Quote:
I mountain bike. It would be going off every ten seconds.
Yes, like air bags, I imagine the recharge, replacement isn't cheap. Mountain biking and suddenly blinded or just having a friend greet you with a slap on the back, embarrassing and expensive. 
Every normal man must be tempted, at times, to spit on his hands, hoist the black flag, and begin slitting throats.
H. L. Mencken
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