My family have just set up a skype account so that we can talk to my brother who is in China. My Dad was chatting away to him, telling him that he's reading Mao's biography, and that it explains some quite nasty stuff. He then semi-joked that he probably shouldn't be talking about it as there might be people listening in. Then the line went dead. So he phoned my brother back to ask if he'd put the phone down, which he hadn't.