Spare a thought for those who go there every day!
Luckily, I only have to go to my office one day a week. I won't be changing anything about my days there and certainly wouldn't consider carrying anything extra for "protection".
I worked in Cavendish Square when there was an IRA bomb at the back entrance to John Lewis. It was a little inconvenient, but nobody really talked about it much. At that time, I recall several times being diverted on walks across the capital because of security alerts and everyone just took it in their stride. We're a resilient lot and not known for panic or knee-jerk reactions generally.
Just keep doing what you've always done. As others have said, the stats are very much in your favour. I, too, am a fatalist. If your time is up, there's not much you can do about it.
