If geneticists could make a pure-bred Muttville dog, it would be Rosalind. She’s a gorgeous tan sandbag with delicate little getaway sticks that click-clack toward you for a little sniff and a kiss. Rosalind proves that senior dogs really do rule. She’s lived long enough to master the art of being a perfect dog. She pees outside, never shouts, and she’ll even take a nap with a cat.