Hi William, I think a lot of men can relate to that feeling of cussing at instruction manuals etc, and refusing to give in. I'm not sure it's even a character flaw, we're all stubborn as hell when given a screwdriver and a diagram. A few months ago I was up until 2 a.m. dripping with sweat, trying to assemble a kitchen unit, it took two attempts! Like you, there wasn't a hope of rest until it got done