There's this dog who lives next door to me who I'm a little worried about. Her owners just leave her in the yard all day, they never take her on walks or anything, even when the kids go outside to play they just ignore the dog. She's a big, german shepherd-y lookin' thing, and clearly has a lot of energy. Whenever people walk by, she runs up to the fence and barks, not in a friendly way, either. But when you go up to the fence and talk to her, she calms down and you can tell that she's really pretty scared of you. One time, the people were gone for three days, and they left the dog outside. They supposedly hired somebody to let her in and out, but I never saw anybody show up. I climbed the fence, and looked around in the yard. Poor dog didn't have any water. So I found a dish and gave her some. Like I said, I can't remember ever seeing somebody come over and feed her or let her inside or anything. That only happened once, but it was enough that I'm a little concerned... I want to report the idiot owners to the police, but I'm not sure if what they're doing is a big enough deal... What should I do?