Where's my tax form? Where's the file that's supposed to hold my W-2 form and interest statement? Where's the mileage log I specifically asked be kept last year?? Where's the monthly check summary? And who's been stuffing Visa receipts in the aluminum foil drawer??!! How embarrassing. I'm surrounded by idiots and I'm the only one in the office.
When you're training as an actor, a lot of the big work you're learning is to treat fictional characters like real people. You don't have the problem of discovering a backstory with real people, but there's always a mystery which is common to both fictional and factual characters. They are never quite the person you think they are.