This might be filed under "you had to be there" but when Ben Emerson, our Sound Supervisor, walked into my office looking like this I just had to chuckle.
Turns out we've been having a fair amount of interference on our back stage wireless headsets. Computers and other electronics generate this noise, so Ben was searching for a quiet location to place our transmitters.
Here is an MP3 clip of Ben wandering the stage. The noise you hear is the interference. I'm still trying to figure out a slicker way to do this but for now click this link and then click on the MP3 file. If anyone knows how write the html to link directly to this file, please let me know.
Is that you, Henry Jewett?