Kristin Home Dogs People Philosophy Links Contact Flyball? Achievements Future Tournaments Kristin Cooper Dogs: Diesel, Jolt Kristin Cooper may appear to be a quiet unassuming person when you first meet her.  However, never make the mistake of being too slow to mix her margarita or she will instruct you to “be quick about it!”  When she’s not spending time with Diesel, Jolt or Xander (she has a human pup too), Kristin works as a Registered Diagnostic Medical Sonographer at Medical Center of Plano.  She also makes world class cheese balls! Kristin and her sister, Kim Kristin and Diesel