From unfamiliar visitors to pesky local wildlife, man's best friend would do anything to protect us from potential harm. Even if that potential harm comes in the form of a sprinkler.
Deep down we appreciate their steadfast and earnest guardianship, of course, but we can't help but laugh when these heroic pups are thwarted time and again by their elusive grass-watering enemies. So in celebration of our four-legged warriors, we searched for some of the funniest dog vs. sprinkler battles on the Web. Vote for your favorites below!