I don't know if I've ever experienced personal (home) fire alarms going off for no reason, and I've never had them go off because of an actual fire, but I have

I don't know if I've ever experienced personal (home) fire alarms going off for no reason, and I've never had them go off because of an actual fire, but I have had them go off when someone else is cooking (alerting me that someone is cooking, whether or not I knew that), or due to steam from a shower, if they are placed wrong - again, whether or not I knew someone was taking a shower. In corporate/organizational environments - often in buildings made entirely of concrete - I've had them go off very frequently, but almost never as a result of a dangerous condition - usually either a drill, a small fire that was immediately put out, someone pulling the fire alarm as a prank/protest or something else like someone burning popcorn or something. I still think the point stands.