In this video, you can see dogs taking part in Kong Alley at the Cold Wet Nose Show. This involves dogs being recalled from one end of the alley, and having to run to their owner while resisting the temptation of kongs filled with tasty treats which litter their route.
As you can see, some dogs manage this with more ease than others! Star (Bichon) eventually makes it to her owner, while Buddy (black Labrador) almost reaches his owner before running back up the course to find more kongs!