So today I notice my left rear signal doesn't work. I pull in to the nearest auto parts place to buy a bulb. When I open the signal, the bulb inside is just shards of shattered glass. Hmmmm, how did this happen? And the square dent in the signal stem? And the little bit of aluminum bitten out of the stem. Oh, never mind. Fix the signal and ride on.
When I get home, I tell my wife. She right away says "the chain". When the chain broke and mangled the chain guard, it whipped back and up all the way to the rear turn signal, denting the stem and breaking the bulb from the shock of the blow, before it went off down the highway.
Someone asked earlier for a pic of the chain guard. I'm keeping it to remind me to be grateful, careful, and not take much for granted.