Like the auto mechanic reading the notes:
Customer states: There's a squeak when driving over a bumps.If you can't even positively identify the problem....what would you like the tech to do about it?
My favorite story about this, which is allegedly a true story, was a guy who told his mechanic that if he went to the store to buy chocolate ice cream, when he went back to his car it wouldn't start. However, if he bought vanilla or strawberry, the car started just fine. Of course, they laughed him out of the shop.
He wrote letters to GM and other such stuff but ultimately it came down to this. Because chocolate was the store's most popular flavor, they put it on display in the front of the store (it was a big store). Other flavors were at the back corner, about as far from the door as you can get. The car had a problem with "vapor lock," which will resolve itself after sitting for a while. The extra time it took to go to the back of the store allowed things to resolve, and his car started.
So it turns out he wasn't crazy after all, but it's easy to understand the mechanics thinking otherwise.