Er, put another way:
Female walking through a park known to be frequented by Bad Guys.
He: "You really shouldn't be walking here. May I ensure your safety." She "Sure, fine, whatever."
He "Oh darn, my feet hurt. Let's lie down for a while and fool around."
She "Oh, no! I really like you, and I appreciate you seeing me safely home, but I just bought this dress, and I'm not having you messing it up. I have a better idea - let's go back to my place."
They walk on until she is safely home. Her large boyfriend comes out and beats the guy up.