ROTFL. It's true that some engineers can be persuaded, but plenty just ignore the evidence that isn't convenient or contradicts their opinions. Have you worked in an engineering area for very long?

I don't have as much faith in engineers as you do. I worked with one engineer in particular who could never be persuaded no matter how much evidence or documentation you came up with. This guy was convinced we didn't need corporate firewalls because all our machines ran Windows, and therefore were protected by network attacks by default. Pretty scary, and I was glad he didn't run the IT department.