If your mail carrier ever delivers something to your mailbox that was suppose to go to one of your neighbors, and you decide to put the piece of mail back out for him to pick up and redeliver, please be sure to write on it "Delivered to wrong address".
If you don't do this, the mail carrier, who believes he or she can make no mistakes, will assume it was delivered to the correct address and that it wasn't wanted, and will return it to the sender.
This could put a serious delay on a four year old's birthday gift - one which her mommy was so excited for her to have. Do you really want to do that to an innocent child, just because you couldn't take the time to write four words on the package?
And on a more personal note: To my mail carrier - Do you really think you are going to convince me that I received a package that I ordered myself and was so excited to give to my daughter and put it back out at the mailbox for you to return? You sir, are a moron!