You better not be calling me one or no foil hat for you, quirky is okay, LOL.... Now, honestly, Bob...
Now, I did switch around the smoke alarms, seriously, testing this out, and it beeps in that location. It is above a stairwell, between a set of bedrooms. Maybe, it is the humidity? It has been 96F for days on end, outside temp. It hit 100 a few times here. I am waiting to see when this heat wave breaks if the alarm in that location, will stop beeping. I'm telling ya, hot as hell here.
Ahh, I did a quick search and found this. On this, #10 could very well apply since, it has been very hot and very humid, and the location of this smoke alarm is between 3 rooms, one is the bath. Humidity might be the problem right now.
I cannot be the only person whom this is happening to right now with this weather.