One day, Sal is hanging out at Phoebe's house when Mary Lou Finney calls to invite them over.
Phoebe has to go around checking and double-checking to make sure all of the doors and windows are locked, because none of the other Winterbottoms are home. Neurotic, much?
The doorbell rings, and they see a young man (about seventeen or eighteen years old) waiting at the front door. He seems very nervous, and he asks if Mrs. Winterbottom is home. Phoebe tells him she's not.
When he asks her name, Phoebe tells him. Then Phoebe asks if she can give her mom a message from him, but he says no and leaves.
Convinced that this guy is a lunatic, Phoebe makes Sal run with her all the way to Mary Lou's house because she's afraid the "lunatic" will ambush them.
Practical Sal believes Phoebe's imagination is overreacting. Uh, you think?