Ok, a couple of weeks back we had one of our local hospitals call dispatch and request every available unit to respond. The power at the hospital had gone out and the main generator failed, leaving the entire facility running on a small backup generator. I was the On Duty Supervisor for my company that day and arrived at the facility about 1 hour after the initial call. I had one of my field supervisor on a unit near by and she was able to set up an initial incident command. Two other services responded to the facility to help. Upon my arrival, I found that the field supervisor was the only person that had made contact with the facility. The main issue at the facility was the lack of diagnostic equipment, CT, X-ray even CBGs. Since no supervisor from the other services responded, I decided to take control of all EMS resources on scene. I have to say I was very surprised at the willingness of the other services to take orders from a competing companies supervisor. Has anyone had a similar experience?