So I was out hunting with one of my villagers, and we stopped by this little house in the middle of a heath. While we're inside, a decay hits randomly, and the house is *GONE*. We're dumped outside, unconscious, and one of the boats we had was floating in the air like it was lifted, and the other was on the ground. My villager 'lifted' the floating boat, and hearthed and... The boat stayed and is now inaccessible.
Weird bug?
http://www.flickr.com/photos/9448648@N04/5629954091/in/photostream