Candace and Linda's relationship

As the oldest child of the Flynn-Fletcher family, Candace is always left in charge by Linda. However, due to the many failed attempts to get Linda to see the Big Ideas, Linda has begun to think Candace has gone insane and it's all in her imagination. However, Linda sometimes sees the Big Idea but assumes it's just pretend or modern art, although she participates in some at times. ("Rollercoaster", "Interview With a Platypus", "The Bully Code", "Phineas and Ferb Get Busted!", "She's the Mayor", "Phineas and Ferb's Quantum Boogaloo", "Tip of the Day")

Candace's Opinion of Linda
Candace does nothing but to get Linda to bust Phineas and Ferb. But by the time she comes, the invention is usually gone and Candace is stunned. She usually gets sad if there is no invention present, or when Linda thinks she's imagining it. Candace is almost always begging to get Linda to come every day. She sometimes thinks Linda sees the invention as it is, but is stunned when she learns what really happened. ("The Fast and the Phineas", "I Scream, You Scream", "S'Winter", "Invasion of the Ferb Snatchers", "Mommy Can You Hear Me?", "Perry The Actorpus")

Linda's Opinion of Candace
Linda has always been irked by Candace about the Big Ideas. She thinks Candace is crazy and imagining the invention, and is called several times to come home. But she knows Candace is having fun with her brothers and usually asks her if she had fun. Sometimes, Linda grounds Candace for doing something wrong, or she believes Candace did the wrong thing. ("She's the Mayor", "Split Personality", "Skiddley Whiffers", "The Secret of Success", "Candace Gets Busted")