A slightly weird thing just happened...
Mid-day, I was just sitting on the couch, and suddenly the kitchen smoke alarm goes off briefly, like, 1 second. The red light is flashing, so I figure the back up battery is going dead, and change it. The battery is a square 9 v.
I should also mention that both this smoke alarm, and the one outside my bedroom, run on a small three prong plug that is 120 v, and runs on house current. The battery is just back up for power outages, and is accessed from a pop out hatch on the front. The main body of both alarms are twisted into a bezel that is screwed to the ceiling. You twist the body to access the wires. The alarms are also linked, so if one goes off, they both do.
Well about three hours later, the alarms starts beeping, startling me again, and I checked the battery was good before I replaced it, and the reset button isn't working, so I unscrew it to just take it out, so it will stop beeping loudly in my ear, and the wires on the back were completely detached!?
How is it they became detached? There is lots of slack in them, and they had to have been plugged in for the approx 2 years since I replaced the smoke alarms. Plus, if both aren't hooked up to the power supply, the other one beeps annoyingly to tell you somethings wrong with the other one. (Super annoying flaw in the system, because if one malfunctions, you have to unplug the other one to get any peace while you sort out the other one, which leaves you with no working smoke alarms!)
Another weird little thing I noticed today, a ladder I keep up against a sailboat I'm rebuilding in my backyard is usually set up like a step ladder. In fact, I just went up it a couple of days ago, to see how much rain had gotten in the boat, and today I noticed it was folded, but leaning up against the boat. It would take a bunch of effort to get the ladder out of where it was, even to fold it and lean it against the boat.
I don't know why, but these two things together have totally creeped me out! Especially the smoke alarm.