Gittes: Mulvihill, what are you doing here?
Mulvihill: They shut my water off. What's it to ya?
Gittes: How'd you find out about it? You don't drink it. You don't take a bath in it. They wrote you a letter. But then you'd have to be able to read. Relax, Mulvihill. Glad to see you.
When Gittes exits Yelburton's office he bumps into Mulvihill in the corridor.