Why do you say "icing on the cake is easy, but giving charcoal in the snow is difficult"?

Social common sense, when you are proud, people around you want to be your friends, because you are valuable to them, which is the icing on the cake. When you are down and out, you are worthless to others, and no one wants to associate with you, because almost no one wants to help you, for fear that you will bring them trouble. This is a timely rescue.