I've been putting a bit of thought into what might work as a DIY solution. The best answer I can think of is that the homeowner should involve the wireman right from the beginning. The home owner should run through what he or she plans to do and the wireman is involved in the planning, monitoring and the making off of the final connections.

I'm sure not too many people will be thrilled at the idea, but it's a heck of a lot better than what's happening at the moment where homeowners go doing their own thing without any guidance or control whatsoever.