Possible Clues:

• Argues with fool about daughter on parole
• ID (to access computer)
• Shibboleth - secret phrase to gain admission
• Durable 1960s game show
• Weapon the old man has for response to challenge
• Secretaries maybe foil security measure
• Romantic approach and solemn promise that gives access to secrets?
• Possible security requirement, weapon owned by parent?
• Old man's weapon that's needed to deal with challenge
• Special signal, something my old man may use in battle?