Even your fat dog affects other people. Took my pup out to the dog park today and started chatting with one of the dog walkers there. She had a group of maybe 8-10 dogs. I asked how her day was going and she said, "Pretty good, although I've got a few gimps with me today." I asked what she meant and she replied, "Well these two are both overfed at home so we have to wait around for them a lot. I feel bad saying it, I know it's not their fault, but I hate having to walk them. They slow down the whole pack."  So yeah, even their dog's obesity is causing other's problems... 6-8 other dogs had their play time slowed to a halt several times because someone couldn't scoop the proper amount of food into their pet's bowl. I just wish people took the health of their pets a little more seriously. They don't have a choice in who their owner is. The least we can do is make sure they are healthy and happy.