Coworker always said she liked my house. Turns out her grandparents built the house but had never met her.
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I had the same thing happen to me. I was dropping my car off to get serviced, and they asked to verify my address.
One of the lube techs overheard me and asked if the house was between two cross streets. I said it was.
His grandparents had lived there when he was a kid, and he had spent most of his summers there.