Each of the 3 angles I was able to photograph Bullet shows just how sound asleep he was perfectly balanced, feet and one hand crossed, but holding on firmly with his left hand, which you couldn't see from the right side at all. Even though I drove around the tree and pulled up, restarted the bike 3 times, he never even twitched a muscle :)
Thank you seriously for the many awesome comments and questions and being koala spotters with me each day.
@haskar I'm not sure - when the winds blow they just hang on like this as they blow about up and down, so maybe they would fare pretty well at sea? (better than I would up on a mast that's for sure!)