Well, yesterday's dying moose is actually dead. The repair guy said the gas valve isn't closing all the way, which means there's always something burning. He wasn't completely sure that was the entire problem, but my AC/heater is really old, they don't make the valves any more, and while he might be able to find a used one, that wouldn't fix all the other stuff wrong with it. Since everyone who has looked at the unit in the last five years has advised me to replace it as soon as possible, I decided to just get it over with. The new heater/AC is going to (maybe) be installed on Friday. He said they were even going to file a permit with the city, but that's only because they'll have to park a crane in front of the house so it's not like they can just sneak the whole thing in.
I told my neighbors about this and found out they had been trying to figure out where that sound was coming from. We had a good laugh. See -- my disintegrating house is bringing the neighborhood together!
Anyhow, because of the valve issue, the repair guy thought it wasn't safe to leave on, so now I have no heat. If I lived somewhere it got really cold that might be a problem, but I think I can make it through the 53 degree low tonight without frostbite. I suspect it might be a four cat night.