John want to get Peter involved with bitcoin, but Peter seems to get too confused by all that.
John has to pay peter for dinner. So instead of giving him the money, and using that debt as an excuse. He is like, let me give you a Bitcheque to your email/sms/facebook/whatever.
So Peter sees:
cheque from john for $15 bucks at 0.0620, claim the money here.
When he clicks, a new bitcoin address is generated and a 'transfer complete' to address...... with private key ..... and public key ... print your paper wallet here.
It would probably have to be a centralized service, and I don't think one exists yet. It may be possible to implement that into a client and have it become a feature of Bitcoin, but that would be difficult to do decentralized.