I have, and you're right it doesn't seem to help. But funnily enough, I also found with so many people watching over my shoulders that I was forced to think cleanly and logically about the process I was going through to diagnose the faults and bring the systems back online. Since I was explaining to a group of shoulder-surfing engineers and managers each step of the process, I managed to get a clarity which I may not have had if left to my own devices. It's like the "Inflatable Engineer" scenario, except I had several real ones available instead :-)