I nominate this for the Squirrel Video of the Year (my own rodents, by the way, are all fattened up for winter after generous ingestion of seeds and nuts). As the Daily Mail explains, a David Freiheit of Montreal affixed a piece of bread to the GoPro camera and put it near a squirrel.
The results were absolutely predictable, as you can see below. At least the guy got his camera back.
The video, of course, went viral, with over a million views in the last week.