No time to respond to everything right now, but I want to make a couple of important points:
1. I wrote that not all smoke or fire necessitates calling the fire. Some posters argued with me that it does. I think that you were talking about different situations than I was. I have witnessed fires that did not necessitate calling the fire department, sometimes even if hadn’t been Shabbos, and certainly if it was Shabbos.
We once had a Chanuka Menora go on fire on Shabbos – someone stood next to it to make sure that the fire didn’t get out of hand and necessitate chillul Shabbos (it didn’t).
Another time, there was a fire in the park near my house (not on Shabbos). I called the fire department and knocked on the doors of all the people in my apt. building telling them there was a fire and they should leave their houses. No one left their house or seemed at all concerned besides me, and the firemen took at least 20 minutes to arrive. This was in Israel where grass fires are fairly commonplace and rarely dangerous.