But one project forever changed me from a carpenter to an entrepreneur: Five Hundred Capitol Mall (also known as Bank of the West Tower) in Sacramento, CA. On that project, a guardrail post became dislodged during a tightening adjustment, and the bottom half of the unit fell more than 17 floors. I had witnessed many accidents in the construction industry before, but this time, I refused to accept that such failures were unavoidable. I developed a surface-mounted guardrail system with a positive, threaded anchorage system and a dedicated D-ring for a tie-off point.