My son, 14, is perpetually bored. He has no interests; if you ask him what he likes he just shrugs his shoulders. He's practically monosyllabic. I've gone from feeling sympathetic to worried and sometimes I even feel cross. I just can't get through to him. He doesn't seem to have many friends and he hates sport. He just wants to stay in his bedroom all the time. What can I do to help his shake this off?