I didn't believe there was a real person in my GPS either until recently when we were on a newly opened section of US 15 that we know about but Hildegarde (Geography Genius) Himmelwassen didn't. She recalculated repeatedly trying to get us back on the right road, assuming that we were driving 60 MPH over farmland. After frequent recalculations, she finally had enough: "I don't know why I bother with you stupid idiots. You never take my advice anyway. I have had it with you. I'm outta here. You are on your own, since you think you know more than I do anyway. So long, suckers."
Yep, there's a real person in there.