Originally posted by: theknight571
This happened to my sister a couple of years ago...
A friend of her's put some sort of whistle in the tail pipe of my sister's car.
Whistled like mad while she was driving... but not so much at idle.
She took it to the shop to have it checked out... and apparently (from what my sister told me) once they discovered the "problem" they literally couldn't stop laughing.
I imagine you coud do the same with a motorcycle.