I have a bad habbit of being nice to people. So when someone asks me of an honest opinion concerning him/her, I mostly end up saying something that will please him/her. So if you ask me if you are gaining weight - I would always say
NO.
Probably I do this thinking that people will also be nice to me in return. All this is in the background of the fact that I am not nice always. In places I do end up giving unsolicited advice or opinion, not welcome!. I wish the world was perfect like whats shown below.

By the way, I am not aware of the source of this cartoon. I took it from
somebody's blog. The concerned blog was in portugese with english cartoons everywhere! It also has a link to its funny
english translation by google.
Click on the image to enlarge.