During the flight, the woman screamed repeatedly that she was going to SUE THE AIRLINE, and when we all did our best to ignore her, she got up out of her seat and stuck her head into the cockpit to yell at the pilots. "Are you out of your mind?" said the guy in seat number one, and dragged her back to her row.
From there, she kept up an unremitting string of curses, complaints, threats and accusations. The co-pilot turned on the plane's PA system and said: "If you continue to scream and endanger the safety of your fellow passengers, we will have police waiting to arrest you upon arrival in St. Louis." She didn't stop cursing, just started doing it under her breath.