There are people who simply do not accept happiness We all know someone who looks like a grumpy cat. They are hard to please and it is almost as if they were at war with the world around them. What trait or behavior that makes people unhappy? Here is a list of things that will help you understand why it seems so hard to make them smile. # 5 underestimate things These people are extremely critical about almost everything. Do not try to see the beauty in things. Undervalue people,…