Like a wet, canine Prometheus.
I don't care how many boardwalks, beach parties, pool parties, roller coasters or outdoor concerts you've hit up since the start of June, this dog is winning summer 2014. This dog embodies everything about fun summer times that I ever learned from watching commercials indoors on vacation. Not only that, but you get to watch a creature get its mind blown in real time as this Boxer realizes that it, and not its human, has real control over its environment. Granted, that control only lets the Boxer do one thing, but damn if she isn't going to do it over and over again, just for fun.
This was posted to YouTube by possum007, whose upload history indicates that he or she is a big nature lover (despite there being a number of vertical videos on the videos page, which we all know are sins against creation itself), with the description "Vicky's beautiful girl pup loves playing with her new water fountain," followed by links to the fountain on Amazon and eBay. So, as with everything truly heartwarming on the Internet, sometimes you have to trust that happiness-inducing content is real when you know it might not be.