Almost every child, at some point during their early years won’t listen, will throw a tantrum, will be mean or aggressive, shy or withdrawn, be a picky eater, and more. As a parent, you know that differences in children’s learning styles and temperaments are a given. However, when any of these problem behaviors become the "norm" for a child, a red flag should go up. If they affect a child’s ability to be happy, relate to others, and go about his daily life, there may be a real problem.