Sometimes you just get tired of walking. You start to think about nothing else but the soreness of your feet and how wonderful it would be if someone else would just carry you the rest of the way to your destination.
It turns out that, based on this video anyway, dogs have similar thoughts as well. This tuckered canine begged his companion for a piggy back ride and got one. Completing the moment was the carried dog spying another doggy on a leash and then staring at the other dog as if to say, "You know they'll just carry you if you ask, right?"