In 1984, when I was shift in charge in an ammonia plant, the control room was ordinary building with three aluminium doors. Two doors were in front of the building and one at the back. The door at the back was near to a locker room. One day as an operator was changing his dress, he spotted a snake in the room. Immediately he raised an alarm (Basically he screamed his lungs out!!) and we managed to isolate the snake inside the room till help came and the snake was taken out. Imagine the plight if the snake had entered the main control room which was just a few feet away. Are you prepared for "snakes" in your control room? By this I mean are you ready with a plan in case the control room becomes uninhabitable due to some emergency? The emergency could be a fire, toxic gas ingress or anything else. Don't think it will not happen. Instead, be prepared.
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