Top Ten Reasons Why BMW Riders Don't Wave Back.
10. New Aerostich suit too stiff to raise arm.
9. Removing a hand from the bars is considered "bad form."
8. Shoulder too stiff from camping on the ground the night before.
7. Too sore from an 800-mile day on a stock "comfort" seat.
6. Too busy programming the GPS, monitoring radar, listening to ipod, XM, or talking on the cell phone.
5. He's an Iron Butt rider and you're not!.
4. Wires from Gerbings is too short.
3. You're not riding the "right kind" of BMW.
2. You haven't been properly introduced. And the number one reason...
1. Afraid it will be misinterpreted as a friendly gesture.

, -0r-