If no one can be home to sign you can wait for the slip and pick it up at the P.O. There is a cut-off date before they return it to the sender.
You can fill out and sign a slip ahead of time and leave it with your carrier.
You could order and have Robert ship it to a friend or family member that lives close. You would need to PM Robert with that request.
I wonder of he can make it so no signature is required
-Sent from my DNA20 through my kayfun Lite