Dear Anonymous Wire Thief,
    My name is Jim Kane, and it appears that you visited my under-construction home recently.  I know this because when I went there yesterday to install a pair of speakers, I discovered that one of the wires I previously ran was missing.  The way I discovered this was by digging through 16 inches of fiberglass insulation for 15 or 20 minutes.  The only problem with your caper was that you left the other wire in place.  Maybe you didn't notice the other wire, or perhaps you were "interrupted."  In any case, no hard feelings here.  Just get in touch with me, and you can come pick up the other wire anytime.  I'll even wrap it around your neck so you won't lose it.

Sincerely,
Jim