I have a horrible sense of direction, but I think I know where I'm going. My husband freely admits he doesn't always know, so he asks me. I tell him where to go and he faithfully follows my directions, almost always resulting in us going the wrong way.
He never yells at me for being wrong, just irritated. Every time he says, "why do I listen to you?" But will inevitably listen the next time.
When I asked him why he still listens he responded, "because you might be right." He has faith that I will be right the next time and trusts me every time. I don't trust myself anymore, but he still does. :)