When I did, I put my home address in the "address" field.
In the "title" field, I put "Bringer of Light".
Well, I just got a call from the HR director. He was not amused. He did not think that "Bringer of Light" was an appropriate title, and wanted me to change it. More importantly, he wanted to know how I had changed it in the first place, since the global address list is a secure company resource that I should NOT have access to.
And I didn't remember how I had done it.
He was livid.
After I got off the phone with him, I remembered, and changed the information to be more "correct". And I still haven't told him how it was done.