I wonder why we’re supposed to flip the flag up on our mailboxes when we have outgoing mail. Is it to let the mailman know that there’s mail in there for him to pick up? If that’s the case, then why bother with a flag? Isn’t he just going to open it anyway to drop off your mail?

Maybe the flag is there to let US know when the mail has arrived. But then it becomes useless on days when you have no outgoing mail.

What’s the story there, huh?