Cash the dog wanted to hop into the backyard pool, but there was just one thing in his way: a big floating unicorn.CLARKSVILLE, Tennessee -- Cash the dog wanted to hop into the backyard pool, but there was just one thing in his way: a big floating unicorn.Megan Vaughan of Clarksville, Tennessee, recorded this hilarious encounter. Did Cash win, or did he run? Watch to see how it ended.----------* More local news* Send us a news tip* Download the abc7NY app for breaking news alerts Report a correction or typo