Cognitive therapy shows how to recognize thoughts that should and must be, how to differentiate irrational beliefs from rational beliefs, and how to accept reality. Emotional-evocative therapy uses role-playing, psychodrama, humor, and other ideas to convince individuals that others can accept them even with their failures and to get them to recognize what they say to themselves when they feel these shameful feelings. Behavioral therapy is used to help the individual modify maladaptive behaviors and modify their cognition. REBT therapists assign active homework and will suggest that there will be penalties for failure to complete homework. Some therapists use the desensitization approach, which is a process by which anxiety and fears are minimized through gradual exposure to harmful stimuli, combined with relaxation, technique training, and other behavioral techniques. While others prefer the implosive (sudden rather than gradual) approach to confronting phobics..