An Argument From Design

Allow me to report on a discussion at my worplace which just took place. Our junior programmer is attempting to get a certain piece of middleware, for which we do not have the source, to work and under certain conditions it exhibits erratic behavior.

Junior Engineer: "Now why the eff does it do that?"
Me: "Because some idiot at (company name deleted) wrote it that way."
Junior Engineer: "Thanks. I knew that and you're not helping."