OK, I think I might’ve solved the mystery invasion of good-deed-doing New Yorkers. If people are being kinder to their fellow man, how do they vent all their pent-up hostility and contempt? On man’s best friend (that is, his best friend before man became man’s best friend). Yep, instead of snarling at other humans, it seems dogs are the new punching bag. Here’s the third incident in less than three weeks: A Brooklyn man totally lost it Tuesday when cops arrested him for starving one pooch to death and leaving eight others to die in his backyard. Matthew Woods, 22, is said to have punched and kicked cops and he even broke a window at the ASPCA’s East 92 Street office when he was brought there for questioning regarding his no-good doggy deeds. It seems Woods and his girlfriend, Latoya Katon, 20, allowed their 3-year-old pit bull to die of starvation and dehydration outside their Bedford-Stuyvesant home, and failed to care for another canine and her seven puppies. Hopefully, doggy heaven is an all-you-can-eat buffet. On the one hand, that’s just awful. Just awful. But on the other—and not to be uncaring—think of what Woods might’ve done to an innocent Homo sapien.