Those who were around last January and took a look will recall Bitch Charm.
And now I'll introduce you to Bitch Charm II. That's our 3-yr-old Rat Terrier, Nanuka ("Nuke"). The other dog is Spot, a sheep herding breed and a very nice dog. If you saw my flying video from the other day, he's featured in my landing. He does this to all the pilots. At about 300-500 ft AGL ('above ground level') he gets "missile lock," as Page, the human Spot owns, describes it. It's very interesting to watch. Rather than simply chasing underneath the glider in the air, he maintains an angle (that's an "intercept vector"), always turning inside the glider on it's DBF ('downwind, base, & final') and always ends up right underneath at landing.
Every pilot I've seen welcomes it just fine.
Anyway, Nuke likes Spot just fine too. Down, and literally dirty. See for yourself.