Non-Audiophile Audiophile question!

Nobody thought of open back headphones?   Listening to speakers in back of you seems, well, backwards. 

You might consider some surface mount speakers, I use Vandersteen VSM-1s mounted on the ceiling for my rear channel in my video system.

Duevel speakers from Germany

@boxcarman ,

Headphones in the office can block important phone calls or chat chimes :)

I certainly do not have first hand experience but as with a couple of your early answers, my first thought was Ohm.

Another speaker line you may wish to consider is Shahinian Acoustics, Ltd. Looking over the line, it seems the Obelisk may be their entry level to a true omnidirectional perspective but they claim the next step down Arc model also offers an indirect presentation.