The mysterious practice of "air-locking" continues. Nikolas Schiller documents a case of a bike locked in a tree. It's a fixie, so I guess air-locking is getting hipper. Or, as Mike Licht supposed, perhaps this person just put hydrogen in their tires by mistake and only managed to attach the bike to the tree before it floated away. 

[Previously: Artful Bike Suspender, Who Are You?, Art Bike Turning Into Parts Bike, The Art Bike Vanishes]