A classic example of where a little knowledge can be very dangerous. Definitely NOT "UL Approved" or "CE Marked". Lack of detailed core issues, presents a situation which is potentially dangerous. I would hate to think of the law suit you could face if someone comes over to your house and a fatal error occurs [your solution APPEARS to have bypassed all of the safeties (door, etc.)). Btw: the above is not meant to imply that I have not personally done some boneheaded and dangerous items in my history [like string un-sinulated 3' bananna jack ended cables across a lab to a 220V 400Hz power source. I was only drawing a few milliAmps, but the source was rated in AMPS and not current limited, if someone had brushed the end of a bananna or the hot and returns ever touched....] One thing I REALLY wonder about in this "How We Did It"/"How It is Currently Done"/"How It SHOULD be done" debate... All of the great crafts [stonework, woodwork, even old school electricians] went through an extended apprenticeship under a master. For the 15 years that I worked for a major aerospace company, this is primarily how the engineering department was staffed. Summer/Intercession jobs for college students [even part time if they were at a local school], this would occur for 2-5 years before the person was offered a "Junior Enginnering" position upon graduation [BS level]. Almost every company I know over the past 10 years, has regularly hired people directly out of school with little or no real-world experience and gave them design level responsibilities without any mentoring or monitoring.