It’s hard to imagine a happier dog than Casey, who was reunited with her owner Rebecca after a two-year separation (Rebecca was working overseas and left Casey with friends). The dog squeals with delight at this reunion, she hugs Rebecca, and then briefly faints over all the exhilaration.(According to Rebecca’s YouTube page Casey was taken to the vet shortly after this exchange and given a clean bill of health.) Get ready for some happy tears! This is the best, purest thing we’ve seen in a while.