We've always suspected our Roomba was actually performing a complex dance loaded with hidden meaning and bewitching charm instead of just bouncing around, and now we've got proof -- check out this long-exposure shot of a Roomba's path over 30 minutes. You can see the initial spiral path in the center, but after that it's a free-for-all that somehow manages to cover the entire room. Now if someone would just make a high-speed video set to the Benny Hill music, we'd be all set.

[Via DoobyBrain]