Years ago I worked at a hospital where we paged "Dr. Strong" whenever we had to deal with a potentially violent situation. That was the cue for every male in the facility to come to the scene and present a "strong" front to discourage any further belligerence. It usually worked.
Just recently, we had a funny situation where a new employee was repeatedly trying to page a doctor overhead, and evidently didn't realize you can't hear yourself when you do this. We all broke up when she said, "Dr. May, pleeeeeeeeeze call 4240" for about the fifth time, then we heard a loud tapping sound overhead and "why the **** isn't this ***damn thing working??!!"