Top 10 reasons that Harley riders don't wave back

1. Afraid it will invalidate warranty.
2. Leather and studs make it too hard to raise arm.
3. Refuses to wave to anyone whose bike is already paid for.
4. Afraid to let go of the handlebars because they might vibrate off.
5. Rushing wind would blow scabs off the new tattoos.
6. Angry because just took out second mortgage to pay luxury tax on new Harley.
7. Just discovered the fine print in owner's manual and realized H-D is partially owned by those rice-burner manufacturers.
8. Can't tell if other riders are waving or just reaching to cover their ears like everyone else.
9. Remembers the last time a Harley rider waved back, he impaled his hand on spiked helmet.
10. They're jealous that after spending $20,000, they still don't own a Gold Wing.

Top 10 reaons that GoldWing riders don't wave back

1. Wasn't sure whether other rider was waving or making an obscene gesture.
2. Afraid might get frostbite if hand is removed from heated grip.
3. Has arthritis and the past 400 miles have made it difficult to raise arm.
4. Reflection from etched windshield momentarily blinded him.
5. The expresso machine just finished.
6. Was actually asleep when other rider waved.
7. Was in a three-way conference call with stock broker and accessories dealer.
8. Was distracted by odd shaped blip on radar screen.
9. Was simultaneously adjusting the air suspension, seat height, programmable CD player, seat temperature and satellite navigation system.
10. Couldn't find the "auto wave back" button on the dashboard.