A man who does electrical installation work without insurance is foolish, to say the least, and leaving blanks out of a live board in a public area only goes to confirm this. In which case I don't think it makes much of a difference what his training or experience was, so it's probably not an ideal example. There must be many out there who perhaps learned in more of a state of austerity and are accustomed to making do and bodging here and there, but if they've covered enough ground and they have a bit of common sense they know what's blatantly unsafe and wouldn't leave a job looking like that.
