In the Navy we had this one pilot [blond female would you believe?] that griped each aircraft she flew that the DME [Distance Measuring Equipment] was 5 degrees off the end of the runway at a distance of 1 mile. I don't know how many times we tried to explain that if the DME wasn't "off" the runway, she would hit it when she landed
The one about the Pilot saying the IFF didn't work [ran into several similar gripes]. The document was signed off as "OFF does not mean On Full Force!