Inky may only be 7-months-old, but this pup is mature beyond his 'dog years' in terms of politeness.

Watch in the video above as the "little helper" holds the door open for the family's 14-year-old dog, Scooby. Owner Maureen Gilronan, who posted the clip, says Inky taught himself the trick so he could help out the older pooch!

It's no surprise, really. Dogs know how to be the best friends.