Possible Clues:

• Terror of such locks?
• Audited taxpayer's emotion, maybe
• Serious apprehension
• Fear money is short after onset of devaluation
• Bad feeling
• Bob Marley "Natty ___"
• Fear uncoiling adder
• Feeling of anxiety
• Are hopelessly trapped in dead ends and fear the worst
• "Truly, the souls of men are full of __": Shak