On Sat, 14 Dec 2013 12:40:30 -0500, Stormin Mormon
wrote:

When my sister and her boyfriend lived in a house, we
discussed run a second Tstat wire. The guy next door had
the stat, and he'd turn it way down before going to work.
They asked him many times not to do that, but to no avail.

That does not sound like a house to me. Sounds like some odd
arrangement.

He who controls the T-stat, wins.