Are these your underpants?
Somebody left these underpants at my house:
I found them under the guest bed. I don’t know how they got there and nobody will fess up to owning them. So I’m putting them on the Internet. Perhaps somewhere, out there, somebody can explain how a wormhole opened and magically connected my spare room with your laundry hamper.
So please, tell me. Are these your underpants?
Oh, and you left this sock too.