Did it!
I encouraged my rugby-playing, weight-lifting 16-year old son out with me yesterday morning.
He gave up after 5 minutes of admittedly very silly comedy running and I carried on and on and on.
I thought he might be a bit miffed by being outrun by his overweight mum, but he was wonderful, telling me how proud he was. I nearly cried. He's going to start the C25K after his exams. Proud son, proud mum.