It's rude to flip someone off.
Birch and his wife Agatha are stuck in traffic when another car almost runs into them.
Birch wants to express his emotions.
Birch laughs at the other drive and plays the song Highway to Hell.
Birch honks his horn at the other driver and makes and obscene gesture at them.
Agatha has a fun time singing along to one of her favorite songs.
Agatha is embarrassed by her husband's behavior.