I'm a nurse and we're constantly getting overweight people coming in with health problems caused by their weight. I don't know how many 400+ pound people of working age come in, disabled and receiving medicaid because of the problems their weight has caused. So while I don't have a problem with mild obesity (obviously - look at me!), I do have a very serious opinion about morbid obesity. I'm sure the problems dogs suffer from it are just as serious as the problems people have, and since we're the ones who feed them then if they're morbidly obese we're directly responsible for their health problems.