Possible Clues:

• Unprepared
• Napping, maybe
• Unprepared for unfriendly defender
• Napping when not on screen?
• Is not prepared for old guard ringing party
• Not taking a drug, foolishly, so lacking alertness
• Relaxed, not on watch
• That's the way to tell the policeman to go away when he's not prepared for it
• Unprepared for railwayman past sell-by date?
• The policeman is unprepared to be told to make himself scarce