Here's what I found in my mailbox yesterday: mail, a used tube of toothpaste, and a used toothbrush.
At first I didn't think too much about it. Obviously there must be a reason why the toothpaste and toothbrush were there. Of course! I'm sure you've all had random oral hygiene props show up in YOUR mailbox, right?
But the more I thought about it, the weirder it seemed. So now I want a good explanation. Spin a scenario for me, please--that's today's writing prompt.