Does that pothole have certification?

Met up with Andy on Cochrane Hill last night. He hammered out 3 repeats, to Rob, me and Alex's two... so good job Andy. Anyway, he was saying how he has been having trouble with his back for quite some time. Seeing the Chiro and Physio multiple times just didn't seem to help. At the Masters RR last Sunday, he hit that pothole that took him out at km 55, knocking him around quite a bit. Well, for this entire week, his back has been perfect, loose, and pain free! He says he's feeling the best on the bike as he has all year! Funny.