CMV: If you point out to your overweight friends that they're unhealthy but don't do the same to your friends who smoke, you should stop pretending that you care about your friends' health.
from /r/changemyview
CMV: 如果你向你的超重朋友指出他们不健康，但却不对你的吸烟朋友做同样的事情，你就不要再假装你关心你朋友的健康了。