17/10/2013 07:35 BST | Updated 17/10/2013 12:21 BST

Dog Opens Door For Other Dog (VIDEO)

"Our 7 month old puppy Inky hates to be away from his best friend Scooby (14 years old)," explains Maureen Gilronan. "He trained himself to open the door and let him in."

Aww. Nice work, Inky! Although we'd be even more impressed if you only had three legs...

(Via Twenty Two Words)