Comment by MajimasEyepatch

Or to an overweight person: "you know you'd be a lot healthier if you just lost weight" or "why don't you get a gym membership" or "it's just calories in minus calories out, bro"? Gee, thanks, you're the first person ever to tell me that I should lose weight and it's just a matter of diet and exercise, like every fat person on the planet doesn't already know. It's like saying to a smoker, "You know that's bad for you. You should quit." That sort of comment is almost entirely self-serving.