Growing on trees?

I’d love to know the story behind the large canine pinch collar someone has put around a tree in the vicinity of Cold Spring Park. Are Newton trees so rambunctious, they need prong-collar correction? Or did some dog, on his way to Cold Spring’s newly debuted off-leash area, throw off the choke of oppression before he got there?

Whatever the explanation, this much I’m guessing: this tree’s bark is probably worse than its bite.