Some say they have lived cautiously, step by step, honestly, and by the rules into middle age. Now, they want to rebel and try everything they haven't done before! They ask everyone about some of the most worthwhile things to try. Someone replied that they want a divorce, want to abandon wife and children, and have a passionate affair that could be life or death. Why do people have such thoughts? Actually, many people don't suddenly want to "experience life," but finally run out of energy to continue suppressing themselves.