Partner: it’s time to replace the smoke detectors.
Me: Why? I just replaced them a few years ago.
P: They’re only designed to work for ten years.
M: But I *just* replaced them!
Me, later, from ladder: ok, so that other one may have expired in 2013, but this one’s still good until [squints] … uh … 1999?

#InexorableMarchOfTime #HomeMaintenance #prepper #safety