"Ma'am. The reason it's so cold in here is that you have your thermostat set on 59."
She looks me dead in the eye: "So?!?"
Tenant: "That's because this furnace is cheap! Ya'll can't give us nothing that works right."
Well, the thermostat was working......
That kind of reminds me of the one from years ago where somebody thought that he could save money by wiring a 3kW heater onto a 5-amp (240V) lighting circuit.
"If it's only got 5 amps it's going to be cheaper, right?"
I guess he may have had a point at that. After the fuse blew he'd have been saving money by having neither heat nor lights!