So I recently took on a boy for online training. We've been chatting regularly and last night he was supposed to cam for me for the first time. But he failed to show or contact me. Assuming something serious hasn't happened, I'll need to punish him. I like Sparrow's 'let the punishment fit the crime' principle, but I'm having a hard time thinking up a good way to apply it in this situation. Since this is, for the moment, entirely online, I can't exactly punish him by not communicating online, because that would effectively suspend interaction entirely. Any thoughts?