BRAACK! BRAACK! BRAACK! BRAACK! BRAACK!I was just heading to lunch today and had just made it to the first floor lobby when this alarm went off. All of the elevator doors automatically opened and even the exterior doors to the building swung open by themselves and remained open. So I dutifully postponed lunch and went over to our assigned emergency gathering point to be accounted for. Fortunately it was a beautiful day weather-wise, not as hot as has been and with low humidity too, so no-one minded being outside. It turns out some pest controllers in the building doing some insect fogging managed to set off the alarm. Oops!!