In reply to The Ivanator:
It did remind me of the young Johnny Dawes in that dream sequence in Stone Monkey, doing laps in his dodgy nightshirt, so maybe there's been some coaching going on.
Probably the most impressive thing I've ever seen on a wall was Cubby 'running' all over the old Fort Bill wall c.88/89, with less swinging around than in the vid but very much faster.