I was just reading this and thinking 'Yeah, no radio, bad' etc when I realised I spent around twenty years flying gliders all over the place without speaking to anyone ever. I still like to be talking to someone when I'm flying powered though, God knows why.
Anyway here's my story. Flying a 182 back from somewhere there was a total electrical failure. I was in the RH seat and shouted (no intercom obviously) 'I'll get the checklist out and squawk 7600'.... as the words came out of my mouth I realised....LH seat gave me that smile that says 'You're not going to live that one down.'