I love watching a happy dog play in the water as their owner strolls along side.
Can you imagine the opposite? While pondering this question I remember a scene back in summer here where a couple of small children played in much the same way in the tiny surf while a great German Shepard stood by keeping a watchful eye. I am sure there would have been been a parent somewhere nearby but somehow it seemed their faithful friend would not allow anything untoward happen just like 'Nana' in the story of Peter Pan.
Either way 'best friend' seem appropriate.
Photo: Robert Rath, ‘Day 517, Best Friend' 1/50s f/18 ISO100 15mm