Clueless, Keyless, Address…less?

My coworker and I are heading to a customer’s location to make a key for an older car. It’s a fairly long distance away, so obviously, we need an address. The customer tells us he doesn’t actually know the address. What he describes sounds like it’s somewhere out in a random field with a barn; we get those occasionally. Since he can tell us it’s on the corner of [Street #1] and [Street #2], we manage to find the place pretty easily.

We also found out the following:

1. It’s a house (not a field) with a detached garage — the “barn” in question.
2. He’s been living there for over a decade.
3. The house number is on his mailbox; he’s just never bothered to look at it.
4. He doesn’t know whether he lives on [Street #1] or [Street #2]. (It’s Street #2.)
5. He actually has the keys; he just keeps putting them in the wrong locks in spite of tags telling him exactly which car they go to. We find this out after making the new keys from scratch.

For what it’s worth, he seemed like a nice guy, just utterly clueless. We still charged him over $300 for everything we did.