A guy walked around my bike, looked at me & said, "nice Harley." == Me, 'That's no Harley, it's a Honda." == Him, "when did they start making them that big?" == Me, "about 50 years ago." I then walked away.
And then there's the guy who says, "I used to ride a '41 Indian but I had to lay it down to keep from gettin' run over by a '29 Packard. Too scared to ride after that."