I can tell Cody and Hunter walked past the mailboxes. It bugs them to have the flags down and they immediately run after me and put them up if I put them down. Hunter looks in the neighbor's mailboxes and if he sees mail in there, he thinks they are mailing it so the flag needs to be up. Cody just thinks it's fun to have them all up. I know my boys have been out there when it looks like this. We never all mail something at the same time. Cute boys and their fun little quirks.