Why not?!!
In over 20 years of plumbing, I have never had to plumb for urinal in a residential home. For the first time, we had a homeowner that requested it. After the installation and testing the fixture, I can understand it now. He requested a special wall mounted faucet instead of a flushometer type of valve which was even more non typical, but when it was completed, the homeowner was very happy! 
