It Was A Reasonable Assumption

To save money, the spousal unit is doing some of the electrical work himself.

He:  I've turned off the furnace. (note:  it's 35F outside.  Practically a heat wave).

Me:  What on earth for?

He:  I have to re-wire the thermostat.

Me:  Oh...okay.  I thought you were going all weird and Scotch-Irish on me.