wonder how long it will be when we start seeeing bans on .... burping in public.... methane is a dangerous and toxic gas
That makes no difference to me.But in stark contrast with your comparison to smoking back in the day, vapors are a small minority of the population.
wonder if the sprinklers could be triggered with vape clouds?
That makes no difference to me.
Well, I wasn't going to comment because you said you were dropping the entire subject, but you didn't so I will
There is a saying that goes something like; If everyone around us is always wrong, the problem is more than likely ours, not theirs.
I've probably got that nowhere near right, but you probably get the idea
vape on.

wonder how long it will be when we start seeeing bans on .... burping in public.... methane is a dangerous and toxic gas
the sprinklers require heat.... lots of heat. there are 2 main methods of sprinkler activation, the glass bulb filled with a highly expansive liquid that ruptures the bulb allowing the sprinkler to operate and the other is the metal fold tab... which softens and allows the valve to open....
in better systems there is a steady pressure on the pipes and when the pressure drops to a specified point a pump will kick on to increase flow and pressure.
right. I thought the fire-dept link was automatic, too. So I'm waiting for the OP to come back and tell us if it was just someone in store security blowing a horn somehow, or if it really was a fire-alarm with auto-dispatch. By the time she got to her car, the trucks should have been pulling into the parking lot, sirens screaming and eye-candy jumping off the trucks in their cute little fireman (and firegal) uniforms !
It's true, I don't know you at all, really. And I appreciate folks like you (and my husband) who are so careful of others. However, while I do try to be nice and considerate of others, as well, I can't go so far as to anticipate every way my behavior may be offensive to others or misconstrued as deliberate callousness. One should also have the right to choose what is good for oneself, not only to live an inoffensive life for the sake of others.
Consider the Aesop fable, The Man, the Boy and the Donkey...
Not to you, but to everyone else.

Thank goodness no one else thinks it was me, oops!
I didnt know it would do that until I just googled it!