That's the sound of the man working in the data gang.

(On Take Your Children to Work Day, my boss had to run a small stock-trading simulation game with the kids.)
(He spent a few minutes prepping me and my colleague for our parts.)
My boss: "If it all goes off the rails, I may have to ask you gentlemen to describe your jobs in 30 seconds."
Me: "Uh, boss?  What is my job description?"
(Pause, as my boss of 8 years stares at me exactly how you imagine he would.)
Me: "Because I've never successfully explained my job in 30 seconds.  Or without profanity."