Continuity mistake: When Ms. Flundergust is introduced to the Warners, she mispronounces Dot's name. Dot has both hands behind her back, but they jump in front of her between shots. Then within the next change of shots, both of Yakko's hands jump behind his back.
Continuity mistake: During the picnic scene, Ms. Flundergust grabs a sandwich from her basket but the lid closes on its own between shots.
Answer: According to the Animaniacs Wikia: "Baloney is one of the few people capable of truly terrifying Yakko, Wakko and Dot, largely due to being impervious to their violently physical brand of humour and his inability to understand how much they despise him."
lionhead