I don't think I'm going to introduce this at all. I'm just going to let you see for yourself.
If you can look at pictures of rappers at work (you know, sometimes they do rude things), then it's work safe. If not... you may want to find a new job ;)
That would be Greed and Kimblee from FMA. Rapping. Yes. I know it's how they supplement their income. XD I'm all :
amburgers and w00tbeer Jammin' with :
DMX - Party Up