Strange thing is that it didn't send it over my Bluetooth headset as I wasn't listening at the time.
>> it should be assumed that you are paying attention and don't need to be woken up
That assumption is false. Last week we got one for likely dangerous smoke and we had to get out of the smoke and close all windows and stop ventilation in the house. You might want to wake up for that as some people use the headphones and fall asleep.
That's true, it is possible that someone could be sleeping with headphones in or something, but I don't think that is common enough to justify potentially giving people hearing damage. Maybe as a compromise it could play at the current volume (or lowest volume if volume is off) through headphones, rather than going up to full volume.
>> it should be assumed that you are paying attention and don't need to be woken up
That assumption is false. Last week we got one for likely dangerous smoke and we had to get out of the smoke and close all windows and stop ventilation in the house. You might want to wake up for that as some people use the headphones and fall asleep.