Thanks...any clue as to why "upside down?"
Actually - it was supposed to make him mad. That way he'd get working on your project a little faster. I TOLD you it was a superstition...I think it's Irish in origin, btw, if that's of any interest.
However, don't let this give St. Joseph a bad name in your mind! He is a very important saint, and the saints are our older brothers whom we may ask for help as we need it.