You don't think of the Mojave Desert having much rain, but it happens. This was last week (California). We were shooting this scene in the middle of the desert in the rain and a Union Pacific Railroad crew truck drives up and the driver says "You're in a National Park and it's okay to take pictures, but don't get any closer to our tracks."

We could only look at each other and wonder what that was all about. They drove away and we never saw them again. Strange.