It’s a SNAP Fix pets to fix the problem: Dog-gone-it: It’s prevention, dummy! Wendy Grossman’s article [“In the Doghouse,” November 7] was, sadly, gut-wrenchingly, vomit-inducingly accurate. When is everyone going to get it? It’s not about building more and bigger holding pens (benevolently called shelters), a.k.a. killing facilities — the…