Been there and done that. Fortunately only got a couple miles down the road before my ever slowing down brain clicked. You know, one of those nagging feelings that you forgot something. Went back and got it. I look pretty cool cruisin into the station and parking behind the car at the pump. The guy gave me one of those looks and chuckled. Oh well, at least I didn't have to buy a new one.
lost one about two months after i got the bike. on a pump somewhere. left side handle bar is a good place to lay it. sits upside down on the controls in certain spot. helps me to remember it cause its right in front of me.
2010 ultra
So far I've lost a gas cap, a cigarette lighter, and a saddle bag pin! Whenever I lose something I buy two more of them so that I can keep an extra in the saddle bags. So as long as I don't lose my saddle bags I should be okay!