I am a fully certified electrician, as well as a journeyman plumber and master HVAC/R tech. I am currently (for life) disabled, as I severed a key part of my spine in an unfortunate fall nine feet to a hard wood floor...the fall wasn't so bad...my face stopped me at the last second!! Now I tinker with computers, and advise others when questions come up about safe practices with electricity/plumbing/refrigeration heating/air conditioning. Great site! Keep up the good work!