Original sentence: " Also in the episode, "Crack That Whip." Betty Jo is shown to have a fierce rivalry with Edna Hildagard, Jeremy and Suzie's grandma ever since Betty Jo faced Hildagard in the no-rules Tri-State Skate Championship, where Hildagard punched Betty Jo and won the championship.Betty Jo accused Hildagard of cheating and Hildagard accused Betty Jo of being a sore loser.Betty Jo has an identical twin sister, called Loraine, who lives in a wardrobe and only comes out once a year when the two want to prank someone.Grandpa Clyde and Grandma Betty Joe (Barry Bostwick and Caroline Rhea respectively) Hair Color: Grandma: Red, Grandpa: White Eye Color: Both are Blue Nationality: Both are American are Phineas and Candace Flynn's maternal grandparents and Ferb Fletcher's step-grandparents and they invite them, along with the neighborhood kids, to a lake house every summer which Phineas calls Camp P&F.Grandpa Clyde, like Phineas and Ferb, has a great sense of mechanics as seen in the "Crack That Whip.Grandpa Reginald Fletcher and Grandma Winifred Fletcher (Malcolm McDowell and Jane Carr respectively)) Hair Color: Both are White Eye Color: Both are Blue Nationality: Both are British  are Ferb's grandparents and Lawrence Fletcher's parents that live in England.Known alternatively as the "Flying Fishmonger" Grandpa Reginald was a daredevil 40 years ago, has a fish-shaped motorcycle called "The Holy Mackerel" and an "anthem" that is so dreary that it automatically causes it to rain, postponing several attempts to jump Mc Gregor's Gorge.Phineas and Ferb finally realize this and upped the tempo, allowing Grandpa Reginald to finally jump a version of Mc Gregor's Gulch made in the back yard.Though they are old, they sometimes like to get the best of the kids and often participate in their capers