This step stool was comissioned by another former coworker.  It was successful enough that I built several, and even made jigs to speed the process.  However, I got a little worried about making and selling them.  As a new business, insurance companies just laughed at me whan I approached them about liability.  Now thatI am established, I am somewhat covered against the stupidity of others.  This stool, as in other pieces, is personally tested to over 350 lbs of wiggling woodworker for stability and joint integrity.

Here is another view with the pivoting lower step extended.  This is my own design.