This small charter plane gets into a big fog and cannot find the airport. The pilot sees a large building with some open windows. He navigates closer and shouts out to someone looking out the window: “Where am I?”. The guy shouts back: “You are in the cockpit of the plane”. “Thanks” says the pilot and takes a bee-line to the airport.
The passengers ask the pilot how did he know where the airport was? The pilot answers: “I asked a simple question, and the guy gave me a perfectly true and meaningless and misleading answer. So I knew that he must be a Microsoft engineer, who is in charge of writing error messages. As such I knew that I was at the Microsoft building, and could navigate to the airport!”